There already is a post asking about published works which started on or were inspired by posts on MathOverflow: Best of MathOverflow, or papers inspired by MathOverflow. It might be interesting to have some collect some resources which are about MathOverflow.
Although in connection with recent suggestion to discuss various possibilities to study data about MathOverflow, it might be interesting to know about various papers that have already analysed some data about MO.
Originally I posted something similar to this as [an answer to History of MathOverflow](https://meta.mathoverflow.net/questions/753/history-of-mathoverflow/755#755). After an advice from a moderator I have deleted it - I waited for some time, maybe it is reasonable to post it now. (Since the post is delete, I will copy here the comments I got from a moderator back then: "I think this should be a separate question, as [discussed previously](http://meta.mathoverflow.net/questions/563/where-to-share-mathoverflow-success-stories)." My response was: "I've understood Best of MathOverflow as a post for papers *based or inspired* by something from MO, not *about* MO." To wich I get the reply: "Yes, as explained in the question I linked to, the best of is phase one of two.")