Nothing short of the best international Newsgroup directory on the Web. Think of a subject that you like, then search for the newsgroup devoted to it. It'll take you there where you can sign on and participate at will. Lots of friendly button click-thru's that make everything easy. If you're a fan of Stewart Cheifet's Computer Chronicles on public television or watch the great computer shows on cable TV's Knowledge Television, this is the site that contains all the stuff you'll see on these groundbreaking television shows.
Most stamp collectors are catalog shoppers.
We love to buy things through the mail. Like many auto freaks, we love to listen to Tom and Ray Magliozzi's weekly CarTalk program on National Public Radio. We hobbyists generally enjoy looking into other hobbies.