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](https://meta.mathoverflow.net/q/617). 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](https://meta.mathoverflow.net/questions/4113/studying-the-mathoverflow-data-dump-with-mathematica), it might be interesting to know about various papers that have already analysed some data about MO.

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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.")
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