Learning from StackOverflow.com

Joel Spolsky explains the community design, gamification, and anthropology behind the creation and early success of Stack Overflow.

Google Tech Talk April 24, 2009 ABSTRACT Presented by Joel Spolsky Until recently, searching for help on highly technical programming problems has been a mess. A lot of what the search engines found was old discussions in forums, where you have a lot of wrong answers and out-of-date answers that you have to sift through yourself. You also found a lot of answers at sites that were hidden behind a pay wall, which uncloaked themselves for Google and then demanded membership fees to see the answers. StackOverflow.com is a programmer's Q&A site that launched last September to address these problems. It incorporates more modern ideas about community such as voting and public editing, and even a few ideas from game design, to create a much more successful way to get help with programming problems. In a few short months, it has grown to 14 million page views a month and reaches 3 million unique programmers every month. The lessons we've learned in creating a successful Q&A site has many implications for search which I'll share in this talk.