If you are interested in developing an online community for your business, I highly recommend attending Paul Greenberg and Chris Carfi two day seminar on "Social Media & CRM 2.0." The next two dates are April 10-11 in Washington DC and May 10-11 in Naples Florida. I'm sure they'll be adding additional dates in other cities. It's a great 101 on how to effectively use of blogs, podcasts, wiki's, and social networks as part of your customer strategy.