https://data.quora.com/The-Quora-Topic-Network-1
I recently read this post by a researcher at Quora, about determining relationships between content. While they most likely have a lot more personally identifiable information about their users than we do, some of the concepts might be applicable.
*Jared Zimmerman * \ Director of User Experience \ Wikimedia Foundation
M : +1 415 609 4043 | : @JaredZimmermanhttps://twitter.com/JaredZimmerman