People looking to learn system games, eh? Interesting.
Now, I'm already running a game, but I could see about teaching if people wanted. I'm not sure how in-depth the story would be, though, since I'm already running another game. Still, I could probably run something that I've done before and would be completely new to people.
The hard part would be that system games require books. Although a few games out there are free, it would require people to acquire the rules systems in order to play.
However, I'm not sure if I have the time or focus to do a weekly game right now. I could probably run something minor as a forum game, though, if people wanted a basic system game in order to help wean them into the process.