Every Monday, I pick a piece of popular media -- a book, a movie, a TV show, or even an album. You pick a roleplaying world and talk about how you'd combine the two. Post on your blog or LiveJournal, and stick a pointer to your post in the comments here; if you don't have a blog, then go ahead and abuse my comments section for your own pleasure.
The list of Mashers to the right is a list of those who've participated in the meme. Visit early and often.