Where can I find resources on how to create and grow an online community?

It is for a small and somewhat obscure trade organization with about 2000 members. The organization website has recently set up a forum and I am tasked with promoting it and growing activity on it.

Are there any websites/videos/SXSW Panel-ish type things/interviews/how-tos online where I can get tips on how to do this the right way? I recognize that growing an online community is extremely challenging but am confident it can be done if the strategy is correct.

I am looking for cite-able resources that may have helped you (links, books, academic papers) as opposed to personal experience and advice.

Thanks all!