For those who enjoy selling photography on micro-stock websites, there's a really good forum to share ideas and information on a site called Talk Micro.
The site is TalkMicro. It's a place where photogs can say what they think, get good input from those who have been there, and can learn all sorts of great techniques.
You don't have to sign up as a member, although you'll be glad you did. Joining TalkMicro is free, and allows you to directly participate in the forms. Take a peek!