If you run any kind of online business and you're looking for contacts, traffic etc., you could do worse than join any of the seemingly hundreds of Social Networking sites that are springing up.
There's a new one around that is a little like Facebook, but has a definite slant towards online business - there's even a page where you can post about online opportunities.
It's called ZenZuu. (Who knows how these people think these names up!)
It's definitely in its infancy at the moment, so it's not as active as Facebook. However, ZenZuu share their advertising revenue with its members, so it's worth getting in at the beginning.
You can sign up here.