StackOverflow is an innovative take on the Q&A discussion forum, focusing on answerable questions. At heart is its scoring system for the community to identify good answers and good questions, and in the process users develop reputation scores based on their contribution. Greg Hewgill created an awesome analysis of StackOverflow posts.
The distribution of reputations and time-to-accepted-answer demonstrate classic long-tail distributions, with what appear to be skewed distributions even on logarithmic scales.
