I've been a follower of Darren Rowse for a long time on his problogger.net blog. If you have a blog and you aren't reading his, you really should start doing so. Based on the very valuable content I've always gotten from his blog, I also bought 31 Days to Build a Better Blog. It really is very good, and I highly recommend it to everyone.
Darren has also just started a forum for the problogger community. It is a pay forum, but I think the cost is worth it. The only problem is that the cost is about to go up (either tonight or tomorrow night, I can't remember which). It's currently $1.95 per month and I think it's going up to $5.95, I think. The forum is at
http://problogger.com (the blog is
http://problogger.net).