I've said several times that Facebook is the GeoCities of Web2.0 (and I ultimately think it will suffer the same fate). When GeoCities was in its prime it was

I've said several times that Facebook is the GeoCities of Web2.0 (and I ultimately think it will suffer the same fate). When GeoCities was in its prime it was pretty significant. Between some of the core features of GeoCities and add-ons like guestbooks, webrings, ICQ badges, etc., there was a good degree of "social networking", for the state of things at the time.