skysight-inc/HackerNews huggingface dataset:
I haven't advertised on Facebook myself, but this is is an interesting concept. If it's broadly true and that Facebook essentially has two "classes" of users, then it's up to them to price them segment and price them effectively for advertisers.

This reminds me of Paul Graham's essays about Viaweb's acquisition by Yahoo[0][1], and how Yahoo seemed mostly uninterested in PG's algorithms for Revenue Loop. To quote: "In 1998, advertisers were overpaying enormously for ads on web sites. In 1998, if advertisers paid the maximum that traffic was worth to them, Yahoo's revenues would have
decreased."

I remember when AdSense ads used to be images and Google replaced them with text links, essentially reducing the clickable surface area of the ads. This essentially slashed revenue in the short term with the theoretical long-term benefit of reducing accidental clicks and increasing the value of the clicks they did send to advertisers, who should then be willing to pay more. As a now public company, it will be interesting to see which path Facebook follows.

[0] http://paulgraham.com/6631327.html
[1] http://www.paulgraham.com/yahoo.html
Yes, I gave up at "dichotomously opposed".
Others people might find useful:

http://craig.is/making/rainbows (1.4kb)
http://softwaremaniacs.org/soft/highlight/en/

I prefer

http://pygments.appspot.com
That would require several million API calls. This sample was taken with only 12500 calls.
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I couldn't either. Read as if it was written in another language, translated to English and then someone went to town on a thesaurus with it.
It's one thing to say that we shouldn't place so much importance in diplomas in the context of hiring. It's quite another thing to claim that "really smart hackers" will be bored if they take Computer Science at MIT, Stanford, Berkeley, Oxford, etc.
CodeMirror is a "full" syntax highlighted code editor.

This is just a syntax highlighter for embedding code examples in your site/blog.
I must say - that kind of perf is superb, though top percentile and averages aren't super representative of the average customer's experience. What are your tp50 and tp90 like?

Your sub-150ms invalidation is equally if not more impressive, especially if you're talking about multi-region invalidation.
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Let's not mistake entertaining with fluffy. If you want benchmarks, redis.io already has that pretty well covered. Everything I've read about redis made me think of it as either a database or a replacement for memcache, but it's be helpful to think about it as something more abstract. The scratchpad idea is something I hadn't heard, and seemed worth sharing.
Eh, maybe the headline, but the article is mediocre.

Why not link to Stallman's actual post?
https://www.gnu.org/philosophy/nonfree-games.en.html
Well, rms was never against charging for software; in fact, he encourages it.

https://www.gnu.org/philosophy/selling.html
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How do you manage to write 10 Million Lines of Code for an accounting software? I haven't had a proper look at it yet, but that seems like overkill. That's an entire OpenSolaris worth of lines in an accounting software, just to put this into perspective.
> I keep watching, but all of the other ARM boards cost more than the Rπ

https://www.olimex.com/dev/index.html
> These MacBooks have dual graphics chipsets don't they?

My 13" does not: 9400m is the sole GPU. I get the same blackness on Safari 6 despite WebGL being enabled. WebGL works otherwise [0], albeit it seems much slower than before.

[0] http://madebyevan.com/webgl-water/
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It seems likely this was a mistake, and not the result of dishonesty or malicious intent. That said, such an enormous mistake should have never been made in the first place, especially by a company such as Facebook.
Would you guys please stop?
An entire business built on a "nifty" trick that is easily replicable and is of value. Well, sooner or later it was going to copied.

Also, not sure how good the context of '$' is

>Go check out $HIT or $WAG (walgreen’s) on Twitter search or thousands

I first read that as Shit or Swag :|
Their response focuses entirely on the issue of them charging them for a name change, and almost completely ignores the bot issue.

I personally don't see that as a big issue, it would make sense that they don't let pages change names willy-nilly. This response is peculiar
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Opening Lesson 1, Variables and Data Types (http://www.codecademy.com/courses/introduction-to-python-6We...) gives me empty content (decorated, but without content inside).

EDIT: I'm using Chrome in Win7.
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Why has this been voted up?
Oh.. excuse a company for trying to target a wider audience.

Now, if the discussion is about these ads involving a decay on the quality of the end product, wait at least two years.

Right now, some people is pissed off because these ads "do not represent" them at all. Well, Apple marketing execs do not care. They already got you on the bandwagon.
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That's the problem with most of API apps of twitter. Twitter is a simple system. And if your are implementing a feature over Twitter via their api you are very vulnerable to this. Anytime twitter could implement this feature. Because you most probably have a user base of "small subset of Twitter's", you will have a great problem after all the users have access to this feature. This will make you the second competitor for the feature and move Twitter to leadership for it.

So building features over somebody else's API is a bad move. You have to build a business which is not solely based over a nifty feature you have implemented over somebody's API which could be hijacked in no time. Implementing features are easy, building businesses are hard and time consuming.
Having lots of lines of code isn't a badge of honor, nor is it a particularly good measurement to begin with. I wish that publications would stop stating this number like it means anything. I could probably think of 10 ways off the top of my head to skew the lines of code that a function would require without even affecting the size of the binary (heck, just change the style of braces...). I could change one line and create a buggy mess, or remove 1000 lines and create a brilliant masterpiece of efficiency.

Something that might mean more is growth in code complexity over time. For instance, if measured every month for a year without changing the compiler version or platform, how much bigger or smaller did the compiled binaries become? How much more or less memory and runtime were consumed? How many "severe" bugs were found? When overlaid with information on the features that were added or removed during that time, it should become a lot clearer how large the code base really is and how maintainable it will be.
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Can anyone here tell me if this bot problem is common on other ad networks, or is the 80% bot click rate much higher on Facebook? Because maybe it's just a common hard problem to solve for ad networks. Or maybe it's Facebook who specifically have a problem. If it's the former, then advertising somewhere else wouldn't solve the problem for advertisers. But I cannot know for sure without knowing if this 80% bot rate is common in others networks too or not.

I do know that many people reported lower conversion rates on FB, but they usually attribute that to lower purchasing intent from real FB users, not from higher bot rate. Or are they simply mistaken?
Snow Leopard's not that great.

Lion (and now Mountain Lion) runs faster on my mid-2010 baseline MBP than SL ever did.

Snow Leopard's UI was way too colourful and the Aqua scrollbars were far too big and look really dated.

It wasted pixels on scrollbars and that stupid resize widget (thank fuck Apple finally stole something useful out of Windows) which made your windows look really tacky.

Natural scrolling feels a lot nicer than the old-style scrolling, even on my old school mouse with a clicking scroll wheel.

Quick Look doesn't suck (in both UI and functionality - persistent QL is amazing).

You're limited to OpenGL 2.1 (you won't see games for SL now that GL 3.2 goes back to the previous version of OSX. GL 2.1 can go and die and that's a sentiment a lot of developers share).

The entire system's a lot more subtle in appearance and IMO it's visually a lot cleaner.

Don't be surprised by people appreciating the Lion features a lot more now that Mountain Lion's out and devs can finally drop support for SL.
It doesn't always need to make you money, sometimes you might just want it to cost your competitor money.
But currently we overestimate how much people should value brand name in education, and there's every reason to think that will change.
Sure, but whose name do we remember? Whose story do we tell?

For better or worse, humans are narrative creatures. Note the recent talk of funding a Mars mission by treating it as a reality show.

Our approach is reasonable. But since people are unreasonable, the reasonable approach may not be the best one.
"How Company X manages a 15,000 pixel icon."
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Wonder if the article was auto-generated? "turnover and profits are down..." so at least turnover is down which sounds like it's actually good for the "once gargantuan beast".
The text-shadow in the dark theme needs a little getting used to but looks pretty nice in the end.
> I first read that as Shit or Swag :|

That highlights the point he's making :)

Searching StockTwits for '$WAG' results in relevant tweets about Walgreen Co. [1], whereas searching Twitter for '$WAG' results in tweets containing '$wag' in place of 'swag' [2].

[1] StockTwits '$WAG': http://stocktwits.com/symbol/WAG?q=%24wag

[2] Twitter '$WAG': http://twitter.com/#!/search/%24wag/
Can we please see some actual numbers! Given the advertiser's "popularity" it's possible they were over-charged something like $4 for a few hundred clicks in which case it's certainly not an enormous mistake.
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There was a "miscommunication" about the name change. I'm a little bit more concerned about the whole "80% of our clicks were a sham" thing. But that could be just me.
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The page basically says "Go ahead. Charge for the software as much as you'd like. Because the user can always download your software without charge from somewhere else anyway."
That's what I do, encapsulated in a bunch of methods aggregated in a streaming module. Don't forget to set this if you're using nginx (which my module does).

headers['X-Accel-Buffering'] = 'no'
Not working in Opera 12.00 Build 1467 on OS X 10.7.4

Pretty in Chrome Canary Version 22.0.1221.0 though.
Question: Did people find HN horribly slow this afternoon? (I found it unusably slow around 2 pm pacific, but there was little I could do about it from where I was then.)
I do wonder, if NASA said they found oil on another planet or moon what the reaction would be. After all it would be a sign of past life on that planet, though I feel that alot would see it as a opertunity to claim more oil.

I just hope the first aliens we encounter are not plant based or they will take one look at us and our use of there dead relatives and it will not go well. Food for thought.
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TTFB at the 50th hovers around 175 microseconds, 75th is at 250 microseconds, 95th around 450 microseconds.

As for the purging stuff, I do mean cross-region. So, it depends upon which node receives your purge request. 150ms is average, but really it's "network latency plus a millisecond or so".
No mention from FaceBook of bots and how they're planning on handling fake-accounts in the future. Is FB trying to deflect the issue by muddying the water with the "name-issue"? If so, bots must be a bigger problem for them than I thought...
Well, I have also tried to advertise on Facebook and saw the numbers of clicks shown in Facebook reports are much higher than the number of visits shown in the Google Analytics. It was rather strange. Besides, the support team has just ignored all my letters where I tried to define what goes wrong. As a result, I just stopped advertising campaign and wrote this article http://blog.britainloans.co.uk/2012/06/our-ambiguous-experie...
I finished reading it, in the same way one finishes watching a hilariously bad movie. :) It was all just grand rhetorics and little substance, to the very end.
I go a step further: I leave HN open in an app tab
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Are the start locations completely random?

I ask because the 3-4 times I opened it, the start location looked absolutely stunning

Also: My laptop usually have issues with WebGL sites, they crash or run really slow. This is smooth as can be!.. Great work

edit: people are talking about zooming.. How do you zoom?
The news itself is not that interesting, since you can watch most of their courses on iTunes U anyway, BUT: they will actually give you a certificate after passing the course.
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Facebook doesn't have that kind of money, and if they screw it up, it's over for both.
Lovely. Google code-prettyify (http://code.google.com/p/google-code-prettify/) is great as well, but Prism looks more aesthetically appealing. Would love to have additional languages `perl`, `python`, `ruby`.
If you want to serve static files cheaply and are moving less than 10TB/mo you will find that CloudFront is a magnitude more expensive than bunch of VPSes with lots of monthly bandwidth.

Viability of this depends heavily on the use but if you're moving funny pictures of cats then you won't be generating lots of income and want to optimize the bandwidth costs.
Not to rain on your parade, but to anyone looking to try this I just wasted 30 minutes getting setup and trying it to find out that Godaddy, for example, returns next to no results through this service so it's no solution to WHOIS woes.
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I don't understand you comment. Could you please explain? Sorry, thanks.
I found it horribly slow from about 18 hours ago (3pm GMT) onwards. I think the last time I tried it was about 9pm GMT, and it was slow them. It took about 30-60 seconds to load a page, maybe more.

Edit: this was using https, I didn't try http.
It's a minor nit, but please get your main page to play nice. I opened the Mashape page in a tab to look at later. When the fan sped up I went hunting, and your page was eating 20% CPU.
Diving?! 2 months of coding and diving? YES
More instrumentation/monitoring details needed to help diagnose future occurences?
Yes, but mailing a bicycle to a random US address as a response to the DELETE request is also not explicitly forbidden in the spec. This doesn't mean that the spec provides for commercial suicide through bicycle mail.
Can't wait for that company to die.
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> Is it really so alien to you that people are invested in the brands they buy?

Words cannot express how terrifying that sentence is to me. At the end of the day, we're talking about stuff. Physical things. Things that you buy. If you're investing in a brand, what is the return on that? If you're being loyal to a brand, does that mean that the brand owns you?

Before people invest in brands, they should invest in themselves and in each other.
Sent an email with the subject "it's time to take this sucker public," and it bounced. For a minute... I dared to dream.
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Try about:memory for FF14 vs. FF15. You should see a big difference.

I find that overall, mem usage has gone down for me and initial load is a lot faster.
But in the same respect, the fact that real human social activity is much more random is a reason why this should be easier. Bots are inherently pattern based, and while there are bots that could work to maintain fake interactions in order to pass a wide-sweep analysis of low-socializing accounts with a high ad response rate, it would do quite a bit to take a first attack on some of the more obvious bots, which are the ones that many of the people who had these problems noticed.

Now of course I'm simplifying this to a nearly absurd degree, but I do think there are reasons for Facebook to want to ignore these issues and that even a minimal step up in bot-prevention could go a long way when it comes to their advertisers.
About the "too expensive" argument. That is one of the worst misconceptions the general public ever had. I'm a peace-loving person but every time I hear somebody complain about giving funds to scientists I want to punch them in the face. The UK spent more money on the banks in one year than they did on science since Jesus (at least that's what I heard on some BBC show lately - however it's all way out of proportion).

If we spent just a comparably tiny bit more on science, I believe the advances would be absolutely huge. Science drives technology, which in turn drives the economy. It's a win-win for everybody and yet we keep putting our money into things that have proven not to work reliably in the past without a second thought.

(On a sidenote: I do tend to get quite angry when speaking about banks these days, please excuse that ;))
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When describing behavior and not as a slur I don't see any problem.
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Which misses the point. Most people are just going to see Apple -> problems -> panic -> tech support -> lose

It's what I saw. Why associate your product with negativity? It's insanely dumb.
It's an exciting question: will the typical MBA private equity idiocy [1] kill this hateful company? Or will GoDaddy somehow metastasize and start contaminating other niches in our industry?

[1] http://www.nytimes.com/2009/10/05/business/economy/05simmons...
Saying that a company has 10,000 lines of code is just as relevant as saying they have a design that's 10,000 pixels big. It could hold more data, or it could be something super simple just made really poorly and very bloated. "Lines of code" is not a good unit of measurement for complexity.
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Lots of companies have talented engineers. None of them are nearly as successful as Apple has been recently.
Newton and Lisa were not projects under Jobs' control - Newton was Scully's baby, and Jobs created the Macintosh team precisely because he thought the Lisa was the wrong solution. AppleTV sells more units than xBox at the moment, hardly something that harms the company. Thunderbolt is a bit too young to see if it is going to pan out or not, but considering that it has the support of Intel, I would be happy to bet on it in the long term.
You make those sound like a bad thing. How do you search for a document with a phone number on OS X? Is the appropriate (socially acceptable) response for these problems to clap your hands together over your head and shout "oh dear"?
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Newton - was under a different CEO. He killed it because the tech just wasn't there yet.

Lisa - was the precursor to the Mac. It was beta but everything you see in a Mac was in Lisa.

AppleTV - STBs are really, really hard. I think this is the last gasp for TV. AppleTV just makes it useful again when the world is moving to watching things on a laptop/tablet.

Thunderbolt - fantastic piece of tech probably has longer legs than eSata, which it is supposed to replace.
Real enough to raise several millions multiple times, hire a medium sized team (22 according to CrunchBase), and be featured in multiple prestigious publications like TIME, Bloomberg TV and Fast Company at least.

And to be fair - this "cashtag" isn't the product StockTwits, it's just a feature of it (albeit an important one).
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Yes, that's true. However, code reuse is somehow opposed to source access to libraries, which should not be necessary true.
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Ha, good point :-)
Reminds me of that anecdote about Bill Atkinson (http://stackoverflow.hewgill.com/questions/380/070/7.html) and his negative 2000 LOC report.
grep? OSX has a UNIX terminal.

Apple is popular because it's user friendly, not because it has features. Advertising features isn't going to wow people.

Demonstrating how user-friendly features are (even if you fake it a bit with expert users, and cherry-picking use cases) works, not simply telling the users that the features are there (and worse, arrogantly saying they are easy to use).
I've had this and can't turn off notifications messages of important messages. It's the same three people, I guess it's facebook's engagement tactic.
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Nitpick: when you're raising $8.6M you're not taking a ridiculous risk, your investors are. Arguably you then have less risk, e.g. you can reliably draw a salary for several years even if your company isn't yet profitable.
You are mistaken and confused. All IO objects in Ruby use `each` for writing out, non-IO objects use something else to write to IO objects. But from an IO object's perspective, that's a read.

Rack responses are IO objects, so they use #each to write data out. That's perfectly coherent.
I'm not getting your analogy :/
Very cool! Pricy, still, but cool. Thanks for the tip!