I don't know why I never joined these two media in my mind before: I read sf (Heinlein's my guy) and I surf the Internet. But never before had I encountered sf on the web. I guess the closest I'd come was reading Snowcrash. But now I'm enjoying that Periodic Table thing and have discovered craphound and a couple other sites related to sf. Cool. And here you get to hobnob with the authors. How cool is that? Maybe it's because I spend a lot of time reading dead sf authors. Heinlein, Wells, etc.