Here's my idea for this week, anyway--I was wondering if you writer-buddy types would like any tutorials on physics? Modern physics (general relativity and quantum mechanics in particular) tends to be pretty intriguing to most people, but also hard to follow, so I thought I'd offer my services as a geek.
Have you got any questions you'd like answered? Concepts you'd like explained? Please feel free to post them in the comments and I'll try to get to them this week! My credentials are an M.Sc. in physics.