I've also signed up with Twitter (soon we will have something on all kinds of social networking sites...). We are on there under this email, firstname.lastname@example.org. So now you can find out how I spend my time on the computer...
Other social networking sites we are on: myspace http://myspace.com/
Ravelry: Thea's username is fibrous, we also have a group
And I think email@example.com is on linkedin.
and Gina has started a photo album, for us on Flickr http://www.flickr.com/groups/