Every Saturday night at 8pm EST I do a webcast on Ustream. I'll keep this post updated regularly with information about the show and the various topics. However you will have to browse to the newest post to view the topic of the week.
I'll be doing a show 5/7/11 on storytelling and advanced world building!
You can always swing by Tinychat and see if I'm live there for questions and help, or if others are there.
Keep in mind that both sites are moderated and follow the same rules as Role Play Gateway.
Stay tuned for updates!