The latest issue of Rootsweb Review, the online newsletter from Rootsweb makes an interesting observation. The idea of using the Internet for social networking is really not such a new thing at all for us genealogists.
Some of the vehicles for social networking are new to be sure--Twitter and Facebook to name but two. But the idea of connecting with people for the purpose of collaboration on a common purpose is not. Genealogists have been doing that for years in the form of mail lists, bulletin boards, published queries, etc. Modern tools make that pursuit easier, but the pursuit itself is not new at all.
We have a class on getting the most out of the Rootsweb site during which we talk about their online newsletter. In case you are interested, you can subscribe to the Rootsweb Review by following this link: http://newsletters.rootsweb.ancestry.com/