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Should I take this $2273 offer from Airbnb?
> What type is "null" in Java?

String

> What type is the stack in C++?

struct Stack; // No definition

Stack *
Well, on the one hand you have to wear pants. But on the other hand it's only a month and $2,273 buys some nice pants.
You seem to have it mostly right, but to clear up some confusion:

There's basically two directions to consider.

Your circles are for your outgoing posts. When you post something, you choose which circles are allowed to see it (or you could choose individual people, or "Public").

On the flip side, your circles inform your incoming news stream. By putting someone in any of your circles, you basically say, "I could be interested in what they say."

What appears in your stream, then, are posts in the intersection of the two: from someone in one of your circles, and to a circle of theirs that they put you in.

So to answer your original question: Google+ can operate in the Twitter modality exactly. You put someone in any circle ("Following", by convention), and then any posts they make to "Public" will appear in your stream. The difference is that the person you're following doesn't have to direct all his posts to "Public". He or she could send some to specific groups of people, which you wouldn't receive.
Installing Chrome as default browser on my mother's computer felt a lot like when I set Google.com as her home page in 1998. And I did it for very similar reasons. Chrome is the fast/lightweight/awesome version of what already existed.
Poor support for PHP 5.3
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Especially with the newer web apps coming out, Chrome 'just works'. Even though I personally use Firefox most of the time, I am telling others to use Chrome more over time. I know they'll always be able to see the web the way (I think) they should.
For as popular as chrome is, I feel like the browser market is going to become bifurcated between "normal users" and developers. Chrome is speedy, stable, and I recommend it to everyone since I'm the computer guy in my circle. But Firefox is still my development browser, and I don't see that changing any time soon.
Is there any roadmap for Google+ API?
Cool things can be done once Google+ API is available. Is there any information regarding API release date of Google+?
Our Google.IO HTML5 Game: Popstar Defense  
Tom here, from Game Closure (www.gameclosure.com) -- we did a pretty ambitious game for Google IO (see youtube video here: http://www.youtube.com/watch?v=8KACnnquQRo)

Google IO was great and we probably talked to a lot of you there. For those who we didn't, though, here's a quick overview:

Popstar Defense is a multiplayer, social game in the tower defense genre: You're a rockstar! But undead zombie popstars have returned from the grave to steal your show ~~ Only your loyal fans can save you now. (Chrome only, ALPHA):http://popstardefense.com (play code is iohtml5).

The tower defense engine we built is one of the most technically complex projects I've worked on in javascript. It uses deterministic physics to run the simulation and keep all clients in sync. It also runs on iOS, Android, and normal web browsers.

Now we need to turn this into a real game with a story, levels, balanced enemies and allies, and the whole nine yards. Are there any hackers out there who have a zany enough humor to pick this up and run with it, and know javascript well enough to tweak the engine and build out levels and content?

We're willing to pay all transportation and housing, and we can compensate you very well for 8 weeks of work. You'll be working beside some of the best javascript developers I've ever met, as well as amazing artists.

Check my profile for an email address!
Congratulations! I have no skills and could do something. I guess this will help designers to add something different in their pages. I think a kid can play with it and make something nice too.
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Actually, their prediction for Chrome in particular looks kind of polynomial. To be fair it does look a little polynomial on the left side of the prediction line, too, but as you point out, using this kind of extrapolation on percentages is ridiculous in any case.
I'm still waiting for my google+ invite, so I don't have a point of reference :(
Seems like a no-brainer given that a lot of the JIT and tracing techniques from the JVM were taken from pioneering VM research in Self, a language which also pioneered the prototype-based OO for which JS is famous.
Local functions would be a nice compromise between the unreadable glop that was posted and the need to declare an entirely separate function to execute localized actions.
Calculate n + 1 without using + or - or * or /
As the title asks! My buddy came across this while preparing for an interview.

All I could think of is implementing a full adder in software but I'm thinking there has to be a better solution...help!
Would love to hear what HN people think about this. We are trying to find a way to make mini events or on the fly get togethers easier.
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It's a good idea! :) One of the problems that I foresee is the critical mass problem. Is the app as useful if you're the only one using it, as it would be if it had 100,000 members?

Good work though!
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There is an overlap: GWT itself uses closure.
What makes Firefox superior as a development browser? The Chrome Developer tools are, IMO far better then firebug...
Critical mass is definitely a problem, that's why we have seeded it with meetup data so it doesn't look like a ghost town for new users. The plan is to go after university students once fall semester starts.
We think a great use case is to broadcast to your dorm "who wants to go for a drink"!
Gandi.net domains are $15 and come with whois privacy and an SSL cert valid for a year. Name.com domains are $10 always, with frequent no-coupon-code sales at around $7. Namecheap domains are $10 and come with a one year valid SSL cert and whois privacy.

By comparison, without coupons, a godaddy domain is $12, and from looking at their site it appears to be an additional $12 for whois privacy, and i couldn't find their SSL certificates start at $50.

It's true that godaddy runs a ton of promotions that make their domains cheaper, but you're spending a lot of time to get the price down to their competitor's normal prices, and without the extra goodies you get with them.
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I kinda detailed it in another post here, but I was already using Facebook friend lists for this sort of privacy control on Facebook. PLUS the new Groups feature works like Circles. I have a Group of my close friends that is closed and private. All the photos we upload there are only visible to those in the group.

The problem is, Facebook has continued to move the Friends lists feature in more and more obscure places. It used to be easy to see the list and the posts from people in that list, but now they've hidden in the account menu.
I don't think they're necessarily superior, but I use chrome for everything anyway because it's my main browser. I don't do too much front end stuff, but for JS debugging and the odd css/html hack, it's more than enough to keep me from having to have two browsers open.
Proof that online protests and ALL CAPS ANGRY EMAILS are useless and that competition is the only way for companies to take things that you care about seriously.

If you want to make change, build something.
It will be interesting to see if Facebook clones every single Google+ feature before Google+ is out of invite-only status. I'm guessing next will be a basic rich text status editor, to go along with the already announced video conferencing.
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Would be funny if in the future Google's ordered to pay $3.14159 Billion for violating the same Nortel patents in Android.
This article seems to forget that 1. IE is getting better, as much as we all hate to admit it, 2. IE is still the default browser of the world's most popular operating system, 3. People are lazy and, as IE keeps getting better/faster, are going to be even more happy to just settle and get on with browsing the web - not argue over which browser is better.
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Nice Matt --- will definitely take it into account dude. Are they your ideas though? Where'd the inspiration come from?
click "most recent" on the main "news feed" page and then pick one of the lists from the dropdown to see only stories from people in that list.
I think it will level out because:

(1) the quality of Firefox and IE have shot up over the last year in response to Chrome.

(2) Chrome's users are the most fickle and thus the most susceptible to new (or old) competition.
The easy interface and wide availability of language bindings to bcrypt is a big deal. The easier it is to use, the more likely people are to use it, and the less likely they are to mess it up. Scrypt isn't quite there yet, and bcrypt is still very good.
... No one mentioned that this was exactly the problem with iphones jailbroken early on?

I am disappoint.

http://www.cellular-news.com/story/40529.php
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If I own a house, I own a house.
If I own a company (which is just a paper entity, made-up), and that company owns the house, then, I pretty much actually own the house. Maybe not in a technical legal sense, but in a reality sense.

Always be wary of "paper reality" created by lawyers. It's not real. It can be a useful tool, a useful abstraction, but it can also separate us from physical reality, and can be used for evil purposes, and produce non-sensical results.

Another point related to this is that there's a lot of precedent in the courts where, even in a case where someone is claiming to be doing something which is technically consistent with the law, and/or are very carefully exploiting a loophole or ambiguity, there are judges who give rulings based on the principle of, "if it walks like a duck, and talks like a duck... guess what? it's a f*cking duck!"
The government can indeed devalue or even confiscate your assets if it wants to. The problem is that legislators have no interest in pissing off well-heeled companies that can contribute billions to their opponents when the only people opposed to software patents are a few programmers and policy wonks with a whole lot less money than the companies that own the patents.
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The government can indeed devalue or even confiscate your assets if it wants to. The problem is that legislators have no interest in pissing off well-heeled companies that can contribute billions to their opponents when the only people opposed to software patents are a few programmers and policy wonks with a whole lot less money than the companies that own the patents.

Also, keep in mind that lawyers tend to be much more politically connected than programmers.
A minor point, but they certainly do not have $36B cash on hand, they have it in assets that can be liquidated reasonably quickly, but companies do not keep $36B lying around, or in the bank. It is stashed in short term investments.
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It makes sense, Facebook already have the audience, by implementing things that could possible woo people to the competition, even if they aren't quiet as a good it still deters people from making the jump across.
I have little to say about the main functionality at the moment, but I'm afraid my first visual impression of that stylized “o” in the logo is somewhat squick-worthy! Perhaps a bit of reworking might be in order?
The problem with this is that the user will be presented a giant list of several hundred friends, which is intimidating to say the least. (Facebook hasn't really tried to discourage indiscriminate friending, preferring instead to algorithmically filter what it shows you in your feed, with the result that most users have ended up with an out-of-control friend list.)

There's one and only one way to make this work with an already existing social graph: show the user a clustered view of their friends. To see examples, do an image search for 'vizster'. http://vis.stanford.edu/papers/vizster
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This seems to indicate that the score has been around for a while because it is closely tied to GMail+GChat instead of Circles usage.
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I feel flattered even though it probably isn't true.
In the article he says you will see about a tenth of a second improvement on a 1 MB codebase. That's fantastic, but I wouldn't call it a bottleneck.
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I feel that like monthly who's hiring, we need a monthly "Looking for Technical/Business Co-founder". And what's a better place for it than HN?
They should have bid Planck's constant and would have won?
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I've always liked Moniker. Consistently cheap, though not as good as,the gandi combo deal.
Who do you feel are "the people that matter" in Google's case?
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What?! The ephemeral port range is a limit for _source_ ports (minus any bound service ports of course). As a bound port (server) however, you rely on connecting client-ip:src-port pairs to track connections, not unique source ports on the local system.

Either this article is quite wrong, or I missed some key point it was trying to convey (maybe it was subtly inferring something about proxying on each system to other bound services??)...
I felt the same way as you. But a few weeks ago I moved to trialing Chrome as both my development and everyday browser. After close to 4 weeks now of trialing Chrome, I'm 99% certain that I won't be going back to FF for development and certainly not for everyday web browsing. I've now installed a total of 10 extensions into Chrome that well enough duplicate everything I had in FF (supporting my web dev and typical browsing activities). And bear in mind this is from a guy who has used FF for many years and was really looking for any excuse not to make the switch. But I gave it a chance and am actually quite surprised that Chrome has won me over.

The clincher for me was looking at Chrome extension development. The extension system for Chrome seems really accessible and well thought out and I feel like I could make some Chrome extensions for myself without really any hassle at all. In contrast, I have been told by acquaintances who have made FF add-ons that FF add-on development can be quite an unpleasant experience.
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Love what you have so far on the website, can't wait to download the app. The design aesthetic is great.
Programming PHP - O'Rielly its not the cutting edge book (2006), but it is by PHP founders and a good ground-start to get a feel for the language and what the commands can do. I learned quite a bit more on how many of the commands work than what other books covered. You will still need a good OOP book,

for OOP I've liked PHP Objects, Patterns and Practice by Matt Zandstra

Some Classic Computing Non-Fiction (circa 80s and earlier):
* Soul of a New Machine - Tracy Kidder
* Fire in the Valley - Paul Freiberger and Michael Swaine
* Hackers - Steve Levy
* Commodore: A Company on the Edge - Brian Bagnall (get the second edition)
* The Psychology of Computer Programming by Gerald M. Weinberg - for being written in 1971 (with an updated edition in 98) it is very interesting and still relevant.
* Coders at Work: Reflections on the Craft of Programming by Peter Seibel - interviews of many luminary programmers, how they got stated and what they have done.
Google quickly reveals this - http://nscraps.com/C/892-c-program-add-two-numbers-without-u...
lol- It's a compass rose, meant to emphasize the location based aspect of the service...are you saying it reminds you a bit of the brown eye?
Everything that I am getting from trying out google+ is pointing to it being a Twitter killer not a Facebook killer; the lack of things like private messaging (yes you can post with only one person able to view it, but it's pretty unlikely that they would ever notice that you wrote it). The whole system is geared towards 'share to group' rather than 'communicate with individual x'; even the video chat is. I don't think it's correct to say that they care about strong 2-way relationships.
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They already have this, but it's a bit hidden.

They're replacing the @ with +, which really ties the whole service together quite nicely (while integrating +1's as well).

Your example would use +ProductFoo, for example. If you are writing a G+ post, if you type +, it will prompt for suggestions, much like Facebook does with @.

I'm surprised it's not highlighted by Google, but they do mention it, buried in the help (which is very nicely laid out, if not hidden).

http://www.google.com/support/profiles/bin/static.py?page=gu...
Sounds like it will crash a lot :P
bcrypt is total bullshit. does not work, broken.
I don't think it will matter if they do. The integration of Google+ with Google's other products is what will drive the adoption. It's basically impossible to avoid. I can imagine even tighter integration with Google's offerings down the road. Like accepting an invite to an event could automatically add it to your Google Calendar. Or allowing you to sync your contacts with your circles.

That said, I also don't think Facebook is going anywhere any time soon. But it'll certainly be interesting to see Facebook's first moves in response to G+.
how about this (example in ruby):
def plus_1(x); arr = []; arr[x] = true; return arr.size; end
How is it different from the Friends app on iPhone by Taptivate? http://www.wired.com/gadgetlab/2010/11/friends-iphone-app/
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We actually made that app, we've taken a lot of the tech from there and used it in Everyme.
Would find it hard to disagree more: the new design looks butt-ugly and disfunctional.
What do yo mean "We actually made that app" - you guys wrote the code for that?
Why was the direct link posted a few days ago ignored while we choose to promote the Techcrunch article which adds another layer? Personally I would rather try things first-hand than hear about it from TC.

What does everyone else think?
As a long-time FF user (and Firebird before that, and Pheonix before that) it would take a bit to sway me. Having said that, you're right that add-on development is unnecessarily tedious (seriously, it should start as easy as that cool link I saw on here that allows you to setup jQuery scripts ala easy-Greasemonkey) , I have to say that FF is surprisingly slow these days, and why does it update on launch (surely it could do a pre-update behind the scenes, and do a switch over of .exe on launch or something).
They are rate limiting new sign ups. The person doesn't need to get a new invite, they just have to try the invite again later.
Interesting thought, but do you know any poor politicians? I don't. I certainly wouldn't expect poor corruptible politicians in a country full of corruption.
If karma is needed to judge the quality of someone's post, then the karma counts are probably inaccurate anyway. At best they'd be interspersed with votes by people who just thought the answer sounded good without really knowing how accurate and informed it is. At worst, the majority of the votes would consist of that type.

HN is better without karma, just think of it as a place to find out about concepts you might not have been aware, then drill down on it with some more trusted source.
I can relate to number one, but what's your evidence for number two?
Funny, this is the first thing I thought of, but then realized it would only work if x>0
http://royal.pingdom.com/wp-content/uploads/2011/07/110701-c...

Is that the predicted market share "growth" as the chart claims, or the predicted market share? I think they were trying to get at the latter, but if that's the case, by Dec 2012 (according to their projections), Chrome will have 55% share, IE 35%, and Firefox 22% or so. That adds up to be more than 100%...

So it can't be projected market share, right?
I think the point wasn't about the cost to Dropbox so much as the opportunity cost (i.e. a lot more people would convert if the free package wasn't so good). Then again maybe if the free package wasn't so good, people wouldn't be such Dropbox fans.
Great to see Whitaker on the cover. I hope that he'll become an active participant on Hacker News: he's definitely a multi-talented individual with a knack for writing interesting and entertaining things which sometimes intersect nicely with the HN demographic.