| 1. |  | Accounting for Computer Scientists (kleppmann.com) |
| 270 points by martinkl 5 hours ago | 42 comments |
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| 2. | | AppHarbor (YC W11) adds support for Mercurial (appharbour.com) |
| 10 points by troethom 31 minutes ago | 2 comments |
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| 3. | | Abusing the HTML5 History API for fun (and chaos) (grack.com) |
| 48 points by mmastrac 3 hours ago | 11 comments |
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| 4. | | Ant colony simulator (not-equal.eu) |
| 51 points by caustic 4 hours ago | 20 comments |
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| 5. | | Google Voice Now Offers SIP Addresses For Calling Directly Over IP (disruptivetelephony.com) |
| 74 points by danyork 5 hours ago | 22 comments |
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| 6. | | Show HN: Beginning Android for iOS Developers (clayallsopp.posterous.com) |
| 150 points by 10char 8 hours ago | 21 comments |
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| 7. | | Why Puppet Should Manage Your Infrastructure (engineyard.com) |
| 9 points by twampss 52 minutes ago | discuss |
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| 8. | | Moviebarcode - Movies compressed to a single frame (moviebarcode.tumblr.com) |
| 186 points by boredguy8 10 hours ago | 60 comments |
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| 9. | | Google Android Captures #1 Position in U.S. Smartphone Market (comscore.com) |
| 71 points by clark-kent 5 hours ago | 60 comments |
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| 10. | | Are "teens" born or made? An interesting twist. (thesocietypages.org) |
| 8 points by ChuckMcM 55 minutes ago | discuss |
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| 11. | | Business Insider Turns A $2,127 Profit On $4.8 Million In Revenue (techcrunch.com) |
| 24 points by pclark 2 hours ago | 9 comments |
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| 12. | | Icons (including free for commercial use) (iconfinder.com) |
| 97 points by torial 7 hours ago | 19 comments |
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| 13. | | Facebook adds Samaritans suicide risk alert system (bbc.co.uk) |
| 10 points by imran 1 hour ago | 5 comments |
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| 14. | | How Facebook plans to bust up the SMS profit cartel (cnn.com) |
| 30 points by panarky 4 hours ago | 16 comments |
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| 15. | | Socialcam Now Available (socialcam.com) |
| 107 points by charlief 9 hours ago | 52 comments |
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| 16. | | IPad gets approval from FAA to replace paper flight charts and maps (engadget.com) |
| 9 points by statictype 1 hour ago | 7 comments |
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| 17. | | 57 YC startups' Twitter follower growth over time (socialgrapple.com) |
| 80 points by shazow 8 hours ago | 38 comments |
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| 18. | | Things Your Startup Should Know about Email Marketing Companies (thestartupfoundry.com) |
| 23 points by g0atbutt 3 hours ago | 15 comments |
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| 19. | | The Joy of The Joy of Clojure Closure (fogus.me) |
| 90 points by fogus 9 hours ago | 15 comments |
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| 20. | | Implementing Workflows on Google App Engine with Fantasm (google.com) |
| 5 points by panarky 55 minutes ago | 1 comment |
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| 21. | | On moving from CouchDB to Riak (linkfluence.net) |
| 129 points by franckcuny 11 hours ago | 34 comments |
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| 22. | | Hey Apple, Please Be Nice and Share MacRuby (merbist.com) |
| 184 points by petercooper 6 hours ago | 53 comments |
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| 23. | | No-SQL injection in Mongo PHP (php.net) |
| 47 points by taylorbuley 7 hours ago | 40 comments |
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| 24. | | Octopart (YC W07) helps nearly a half a million people find parts every month (eetimes.com) |
| 64 points by smock 8 hours ago | 25 comments |
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| 25. | | Google announces bitcoinj: a bitcoin implementation in Java (google.com) |
| 99 points by nas 10 hours ago | 38 comments |
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| 26. | | Work Less (thinkvitamin.com) |
| 82 points by bjonathan 10 hours ago | 41 comments |
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| 27. | | How rich kids already won the career game (michaelochurch.wordpress.com) |
| 258 points by violetmae 16 hours ago | 230 comments |
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| 28. | | Kik (avc.com) |
| 77 points by bjonathan 10 hours ago | 12 comments |
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| 29. | | Dear Apple, Please Copy This Notification System For The iPhone Immediately (techcrunch.com) |
| 22 points by evo_9 5 hours ago | 9 comments |
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| 30. | | R.I.P. Tweetie (taptivate.com) |
| 53 points by olivercameron 8 hours ago | 15 comments |
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| More |
