skysight-inc/HackerNews huggingface dataset:
Brian Wong talks to Kevin Rose: Amazing story
<sarcasm>Nice to see libraries and local universities are thinking ahead for when they want to modify the source code of their database </sarcasm>
Senior employees want to take action, solve problems and get on with things. Sugar coating it is wasting both people's time essentially. At least that's my understanding from the context and my personal experience.
This story/headline at the WSJ seems to have been posted before, but with now updated content. Its fairly even keeled, focusing on the cost/phsyics issues. Here is a relevant summary:

At $10,000 a car, the costs of a 100-mile range battery are still prohibitive for a mass-market car, even if gasoline’s superiority in range and refueling aren’t taken into account. This is one reason why General Motors Co . is rolling out a Cadillac version of its Chevy Volt plug-in hybrid, following Tesla Motors founder Elon Musk’s strategy of compensating for the high cost of lithium-ion batteries by marketing his electric car as an alternative to a Porsche. If you want more than 1% of the market to be electric cars, you start by selling to the 1%.
Definitely a shorter time frame changes things. Trying to lengthen the time your customers stay with you sounds pretty irrelevant in your case (without knowing the ins and outs of your business).

Do you sell just the one course?

Some of these tactics could help you up-sell them on other offerings of yours.

Alternately focusing on getting more customers who abandon your funnel could be a quick win. See last week's post: http://blog.getvero.com/how-flightfox-doubled-their-remarket...

chris AT getvero.com if you want to go into real depth / just have a chat: I'd love to help and get you some more sales personally.
Disruptive innovation in journalism, by Clayton Christensen et al
I strongly disagree with the negative sentiment expressed thus far in the comments. Understand, that when articles are hosted on the rapgenius.com domain, that the user base will mainly comment on allegories, make jokes, and explain vernacular. However, Law Genius, Bible Genius and other areas they expand to will be targeted to people working / following those domains: people with expertise to add valuable commentary.

rapgenius.com (the site) proves the model of Rap Genius (the company). They were able to attract a critical mass of domain experts to explain rap music. Moreover, their SEO model works. Imagine if in a year a search for Brown v. Board gives you results for Wikipedia and Law Genius. Wikipedia summarizes and quotes. Law genius is a primary source that presumably will have annotations from domain experts. If properly executed, the Rap Genius model will enable a wider audience to deal with primary sources, leveraging crowd-sourced commenting to enable a person with little domain knowledge to understand the original document.
UberTAXI is arriving in San Francisco
IPhone App that encrypts messages and calls.
Test bundles. Given that they're sold on giving you their CCs, many would be happy to e.g. pay more for a one-hour chat with you, a complementary good, an automatic skills test, etc etc etc. You can easily 2x average sale size this way.
You are a developer, the Internet is your friend. (web dev howto for designers)
Avery Durable View Binder with 2 Inch EZ-Turn Ring, White, 1 Binder (17032)
Hey there, sorry about that. Still a work in progress! I will see if I can get an intermediate page up there instead of redirecting back to the main page.

Thanks for the feedback!
I misclicked inside of blogger. Fixed. Sorry.
Uninstall ms office word
This is exactly why I love SocketStream. The extensibility of it is great. I can use one of the several thousand existing node modules/libraries and install them easily via NPM. In addition, development has been active and Owen (the lead dev) is extremely responsive to any issues on the GitHub repo.

He recently demo'd SS at LXJS 2012 - worth watching IMO: http://www.youtube.com/watch?v=LOS1lpWXphs
First I thought this wasn't worth the news, but then I realized that this isn't just a new service for Uber. I imagine this is a way for them to deal with SF taxi services that want to get rid of black town cars.

Uber is now giving taxies a way out. By adding them to the system, cabbies cannot complain that Uber is awful and illegal competitor.

If the cab service sucks, well, it's the Taxi's fault and you can still book Uber Black. Uber wins. If the taxi service works, Uber will get a cut from the transaction.

Either way, Uber wins.
Mongo is not an ODB in the traditional ODB sense. Mongo is just a document (or blob) database. ODB supports relationship, link traversal, inheritance, etc. Basically the whole shebang of the OO notions in a database.
I don't quite understand how the transition happened from no-json support to json support in those slides. How did the plv8js do this searching on fields?
We generally mean, or want, "participants" or "members."
I'm certain the coinage above isn't Veen's and predates 2004. Just recently, I looked for a source and could not find the canonical. I'd been working on this:

http://www.forbes.com/sites/smcnally/2012/10/15/guided-by-vo...

"“The only people who refer to their clients as ‘users’ are drug dealers and technologists.” ... We still refer to “visitors,” “audience,” “consumers” when what we say we want are participants. ... We distinguish “creators” from ”consumers.” It’s a disconnect. While it’s just labeling, it has a great deal of bearing on our attitude toward the community."
I have allowed most connections on NoScript and RequestPolicy in Firefox, but this website shows only the background image. How do they use many APIs or stupid JavaScript snipets to show something about SECURITY?
It would be interesting to see weekdays vs weekends. Houston works the freeways pretty hard during the week, and not so much on the weekend. Or, at least that's how it seems.

Also, re quotas, from my cop buddy (constable) "Of course there are no quotas, that's ridiculous. What they do, is tell you to attend the meeting of the commissioner's court; during which the commissioners bemoan the budget woes and discuss which county employees may have to be laid off if things don't improve, etc. etc." He said that usually inspires the troops, and nobody ever says the word "quota."
New "Surveillance-Proof" App To Secure Communications Has Governments Nervous
Nice, I'll have to give 5.4 a try. Currently using 5.3, and finding it memory hogging when doing a lot of database operations in a row (300k+).
Do podcasts count?

These are updated weekly.

StartUpsForTheRestofUs.com

Mixergy.com
SuRi Parked In My Backyard – What $150,000/Week Can Get You
Laziness might be justified sometimes, but you may as well call it what it is.
Send your past customers an email series starting about 11 months after their initial signup offering them money if they get a friend to sign up.

You might not get another sale from the same person, but what is that word of mouth worth to you?
I love "getting real" and all the entire philosophy that 37signals brings, but how does this vitriolic comment even make sense? How are you supposed to talk about the people you are designing software for without a generic term? I guess you could say "this happens when the 'person' clicks that" "I think that this menu is more 'person' friendly than that one", but then you're just replacing one generic term with another, and really, what's the point. Claiming some sort of moral high ground based on the usage of generic vocabulary is ridiculous.
i think when they say "only system of it's kind" they mean they are solving all of these problems in different ways than all other systems... everything from rails to django to opa to derby to whatever.
I bet color is getting way more traffic than normal with this stuff.
In postgres, you can index on a stored procedure, so you can use a simple stored procedure written in JavaScript to look up by key and return values, etc. Example available at http://people.planetpostgresql.org/andrew/index.php?/archive...
A great suggestion too!

Do you have any details on having used something like this yourself btilly?
Google allows look at eight vast data centres that power the online world
Before I go any further, I would like to make it known I really like Jack Dorsey as a person and entrepreneur. He is a smart visionary who possess's the same kind of entrepreneurial spirit that many of us here possess as well but this is one of the silliest things I have ever read.

Why does it matter what you call the people that use your services? They are users of the service. You are providing a service for users. For example: John Doe goes to a store and they use Square, John pays for his product via the merchant using Square — John is a customer, the retailer is a user of the Square service. It's not like John (the customer) is paying Square directly just for the privilege of being able to pay for his particular item via a credit card.

The word users works, lets not over-think this. As long as you are providing exceptional services and exceptional support you could call us cretins for all I care.
Perfect symmetry makes it more impressive?
There's more to design than making your text boxes look pretty.
"Let us suppose I<ϕ"
"We say a symmetric ideal equipped with an independent algebra G is symmetric if it is discretely pseudo-tangential."
"Let Z' be a standard, super-empty functor."

What the hell did I just read?
That's awesomely terrible mathematical non-sense. I'm pretty sure a high-schooler would be able to tell it's utterly fake...

It's a good laugh, though, for those sentences that almost make sense.
Why I Criticize The Plone Foundation Board
What about when Rap Genius creates a Chrome/Firefox plugin which lets users annotate the entire web?

All of a sudden, their valuation makes sense... that sort of data would be hugely valuable for Google as part of Google Plus.
i wish OP would've atleast included some "conclusion/final words".
for someone in the same boat of choosing the right platform, this benchmark serves no real help in deciding which to go with. a comparison with Rackspace Cloud for one, would be very helpful.
It has per-database locking. Per-collection is being worked on but no planned date yet. [1]

[1] http://www.mongodb.org/display/DOCS/How+does+concurrency+wor...
'Dynamic ticketing' could transform the way we pay to see live events.
I'm liking using taximagic.com in Portland, and love it, so I'm excited to see taxis also available through Uber.
That's probably ad hominem you're thinking of. "Straw man" is probably best described as putting words in someone's mouth - it's when you attack an argument that your opponent hasn't actually made instead of attacking their actual arguments.

Fallacyfiles.org is a really good resource for this stuff as well as wikipedia: http://en.wikipedia.org/wiki/Category:Logical_fallacies

Anyway I hope I'm not being too pedantic. I think logical fallacies are like programming anti-patterns - the terminology's less important than being familiar with the sketchy patterns so you can sniff them out.
http://unicornfree.com/30x500/
I don't think it's a big issue. I agree with this blog post from 2004:

> We think "users" is exactly the right word. It makes the USER the important thing. The one who cares about USEability and USEfullness, two words we really like. We don't care if we make fans. We aren't even motivated to create customers. We believe that if you can do things in such a way that you help people become passionate users, the rest takes care of itself.

http://headrush.typepad.com/creating_passionate_users/2004/1...
Command Line SEO: Using Awk & Sort to Manipulate a List of URLs and SEO Data
That's a great idea. Word of mouth is important, and forum posts are especially important. The general customer cycle is often:

User remembers hearing about Kaplan/princeton review --> Discovers Kaplan/princeton review sucks --> Discovers test prep forum --> Tries whatever is mentioned there

So we can ask for forum posts sometime after completion.
Open Source Github Internal Training Materials
I find this sad. Hobbyists loved A123 battery quality.
Hack your way to a great film
tropicalmba.com

lifestylebusinesspodcast.com
Ask HN: Do you want a more affordable solution for user testing your website? 
So I think it's pretty unreasonable that sites like usertesting.com charge $39 / user test. It is pretty expensive particularly if you want to order multiple testers.

I wanted to develop a more simple and affordable method for getting your site tested so I created BetaPunch.com

My pricing is currently set at $10 / user test which I have been told by many of my peers is too low for the quality of feedback my customers are receiving. Here's some proof of customer satisfaction: http://i.imgur.com/ZvjlM.png

But my target demographic is early stage startups and I know money is tight so I wanted to give them something that was affordable.

I created a coupon code for anybody who wants to give it a shot. If you enter the coupon: ' hackernews ' when you sign up your startup and order at least 1 test you will get an additional user test for free.

Let me know what you think.
Nodefront - Rapid Front-End Development
Man Utd vs Stoke
Instead of disabling it, consider putting it into permissive mode. It logs violations but doesn't enforce any rules. It's a good way to get a feel for what it's doing. You can tweak the rules, view the logs, tweak some more, and work up to a tight policy before enabling.

Also, if you disable it, re-enabling requires that you relabel all of your files and reboot the system; the relabel process can take an impressive amount of time.

Switching between eforcing and permissive can be done on the fly with the setenforce command, no reboot required.

I do think that laziness is a virtue in a sysadmin when properly applied, but using selinux is in your best interest.
Got a good chortle out of it.
This is why the Roomba cleans the edges of the room. It's the dirty part.
MongoDB is a JSON document store. Almost all other NoSQL are key/value type stores.

If you have a use case that centres around storing document style data then MongoDB will be better suited.
Yeah I know, done purposefully to see how MUCH slower this is. This is how the majority of code is written in the wild, rarely do you see the `count()` pulled outside of the `for()`.
It's good to hear they will be releasing the source! A tool like this would be rather insane to use by anyone serious about security without the ability to inspect the source. The article states it will be under a "noncommercial open-source license".
It wasn't in 5.2 which these tests are based on. Basically someone linked benchmarks done several years ago.
I have no Django experience, but I can imagine how an attack like this works:

1. Links are rendered via some function that takes into account the user's current request (ie: to determine the proper host)

2. The "reset your password by clicking this link" URL is generated using that function.

3. I am a malicious attacker and I submit a password reset request for your account.

Thus, I can control the URL that is sent to you in an email.
There's a very simple explanation. Ben Horowitz invested in them because he loves rap music. Perhaps these kids chose this specific niche (rap music lyrics) in order to target a name partner in a top VC firm. Not a bad strategy if you want to raise a shitload of money in order to win the annotated web.
PostgreSQL is the PAST and it will forever remain there until it solves its biggest problems.

It is the hardest out of all databases I've used to cluster, replicate, shard and manage. And the database world is moving towards scaling horizontally rather than vertically. I can push a button in say CouchDB to replicate and shard. Try doing that in PostgreSQL.
247 ways to draw trees
I don't think the ad was that bad. They were trying to display the Surface as easy and for all kinds of people. It's sad they focused on the keyboard, but it's better to advertise a feeling than a feature set.

Don't think I'll buy one though. Just don't like M$.
I would start out with a high interval then slowly decrease for each individual user based on the number of times they post on each service.

You wouldn't want to go to my twitter page 20 times an hour when I only post once in a month. It might make more sense to check every 30mins to 1hr.
Um so, I still don't know what the App Developers Alliance is...
I was under some sort of vague impression that he was estranged from twitter. Googling seems to indicate that was wrong.

So not "subtle jab", rather "pseudo-subtle nod".
One of the biggest questions will be how transformative annotations are, and whether that will give adequate protection if users upload large chunks of copyrighted text. Google's use of thumbnails in image search wound up being covered by fair use[1] for this reason, and a judge recently ruled that book scanning was covered by fair use[2], as well. From the article:

> "The use to which the works in the HDL are put is transformative because the copies serve an entirely different purpose than the original works: the purpose is superior search capabilities rather than actual access to copyrighted material," wrote Judge Baer. "The search capabilities of the HDL have already given rise to new methods of academic inquiry such as text mining."

This might set precedent for a showdown over annotations that quote extensively from the source text, since online annotation systems also "[give] rise to new methods of academic inquiry."

The main point here is that laws about fair use are pretty vague, and new technologies always shake things up. We don't know what is legal and what isn't until it's put before a judge. In the case of Google's book scanning, the court case took seven years, which shows just how tricky this area of law can be.

[1] http://arstechnica.com/tech-policy/2007/05/google-v-perfect-...

[2] http://arstechnica.com/tech-policy/2012/10/court-rules-book-...
Depending on the ORM (or otherwise) it may have some level of caching, so the best performance would be using the PHP functions/classes directly (eg: PDO/MongoCollection/Redis).

In addition to the above, PHP extensions would be extremely preferable to pure-PHP libraries for database interaction simply because the extensions will be written in C and lack the overhead of the language.
Ok thanks for clarifying. I'm 33, no spouse or kids.
Definitely microseconds, most of my scripts with database interaction and all fully complete in around 50 milliseconds which would be impossible if string comparison took 2 milliseconds.
Yes. There is no rational explanation for people using the right tool for the right job.

Let me guess. You would build a skyscraper using a trough and cement in a bucket ?
Yup, that's basically it. It essentially makes phishing Django sites easier. The vulnerability could allow an attacker to send a legit email -- sent by the real site itself -- with a link that sends a user to a malicious site instead.

[So please upgrade!]
Can't wait until self driving cars are Uber.
I hope this does not spell the end of UBERx (http://blog.uber.com/2012/07/03/sf-vehicle-choice/). As of right now, I can still see UBERx cars on the map so I have my fingers crossed.
Edit:

I had always heard the phrase "separate the men from the boys" in that form rather than the feminine form. And I think there's a reason there's a different meaning, that's pretty intricately tied to social notions of gender. While gender is largely socially constructed, rites of passage for respective genders are even more so.

In many cultures, young men go through a rite of passage to prove they're men. They prove their masculinity--not show it, prove it, usually overcoming some obstacle. They kill a lion, for instance. Women go through rites of passage too, but they do not involve proof, rather show. This does not mean the challenges involved are easier. It simply means their role in the final evaluation is passive rather than active. The reason men are active in their judgment and women passive reflects back on the opposite gender, because men judge women and women judge men. Men are looking for traits that are visible, women for traits of character.

You could argue this is all because men are shallow and women are not, and you'd be right for reasons due, in turn, with the gametic, game-theoretical origin of asymmetries between men and women.

So there are fundamental reasons why it's not the same thing to say "separate the men from the boys" and "separate the women from the girls."
I think this guy has a thing for slapping... http://hackthesystem.com/blog/how-to-get-slapped-by-50-colom...
"Automatically adding" a 20% gratuity is a no-go for me. That's about what I normally tip for a cab ride, but it's not their call to do that. Uncool.
Crazy, I remember the old days of hip hop, the late 80s. Arguably the zenith of the art form, the golden age. I hadn't the slightest clue back then that it would be used to sell Chryslers, vodka, and that some of the veteran practicioners would be chopping it up with Warren Buffet.

http://www.huffingtonpost.com/2012/01/19/warren-buffett-jay-...
http://video.forbes.com/fvn/forbes400-10/jay-z-buffett-forbe...

It's come a long way, from basement/block parties to a cultural force.
Just because you can write an app using assembler doesn't mean it is the best way to do it.
I'm wondering how they plan to justify a markup on taxis though. Uber Black isn't much more expensive than a taxi as it is, so if I'm going to pay above what a normal taxi costs, I'd just as soon go that route. If they plan to take a 'referral fee' from the taxi companies, I think they're still going to get a bunch of opposition as that'll cut into margins.

I don't know nearly enough to know whether or not taxi services currently offer any kind of referral benefits or what, but I envision taxi services as low margin operations as they are (though that could be way off the mark).
Z-Score is your friend for this kind of data normalization.

http://en.wikipedia.org/wiki/Standard_score
He had very good reasons, Amazon is going to sell a lot of kindle fire and people are going to come after them.
The hierarchy of slides goes something like:

Relevant images which support the speaker
Relevant graphs, rendered for projection
Relevant microcopy which gives context or focus
Relevant videos which are kept as short as possible
Bullet slides which double as effective microcopy

Bullet slides which double as speaker's notes
Most slides which animate in point-by-point
Irrelevant or unnecessarily long videos
Unreadable diagrams
Unreadable walls of text

The zeroth rule of presentations is don't waste your audience's time.
Any platform that supports synchronous replication?

http://www.postgresql.org/docs/9.1/static/warm-standby.html#...
Janke assembled what he calls an “all-star team”: Phil Zimmerman, a recent inductee to the Internet’s Hall of Fame, who in 1991 invented PGP encryption, still considered the standard for email security. Jon Callas, the man behind Apple’s whole-disk encryption (which is used to secure hard drives in Macs across the world), became Silent Circle’s chief technology officer.

Yeah... that might actually qualify as "all-star"
Would be really cool if I could see a small demo for each tree. Maybe for the more popular ones? Right now all I have is paywalled papers...
Companies built for the long haul... the Japanese seem to excel in this area
It's what makes Uber delightful tho. You just hop out and get on with your day. No impatient cabbie with his hand out. It's fine with me.
"There are only about 1,500 “medallions” (essentially permits) that allow taxis to operate in San Francisco. To put that in context, NYC has over 13,000."

Wow, intentional abuse of statistics used without context, while claiming to provide context. NYC is 10x the population of SF, so has fewer per capita mediallions than SF.
> It will store only the email address, 10-digit Silent Circle phone number, username, and password of each customer.

Surely this is not correct.
The science behind how your productivity is chosen by what you eat