In 2000-ish I worked for Netscape Community Connections and was studying online community. Derek Powazek interviewed me for a book he was writing on the subject that was published in 2001. The title was “Download of Design for Community, The Art of Connecting Real People in Virtual Places,” (See paperback on Amazon). Derek recently emailed me to let me know that a preview of the book is available for free.
If you’re starting up or managing any sort of online community it’s a great read.