Twitter, Facebook, Google+, Tumblr: there's a host of other social network companies out there, & chances are you use at least one of them. Bring your contacts there back to Delphi, your internet home.
Looking for other space enthusiasts? Crafters? Political activists? Try out http://tweepml.org/ to find lists of people that share your interests. (I just used it to follow other space enthusiasts, and ended up running across someone else from Delphi!)