NetoMat

shared Multimedia White Board app/service

A netomat is your own web page that you can use for back-and-forth communication with friends, family and colleagues. With a netomat, you can share your pictures and files, write text, draw and more! And it's totally free, easy and fun.

http://www.netomat.net/

is it like a Wiki? A One Page Wiki?

http://joi.ito.com/archives/2003/07/21/netomat_beta.html