Yeh BBS's like Fidonet etc. Web 2.0 is just web 0.1 reskinned.
A lot of people have forgotten that back as far as the miod 1980's Fidonet and other dialup BBS platforms had things like forums, real time chat, online interactive games amongst other "new" features of Web 2.0. the difference is in the ability to access them and their popularity.