Inquiring Minds have several other big hitters.

There was a Canadian TV show that sort of stays on on the web even though the show is defunct.

And CSICOP has a page for sceptical investigators. (CSICOP is a good organization for learning how to debunk the alternate realities that some people create.)

I really want to get one of those Darwin Fishes, but I don’t ornament my car, so it doesn’t do much good.