The generic term for a web 2.0 is a site where people submit their own content. When you see web 2.0 referred in WF and other forums, they are reffering to sites like wordpress, blogspot, hubpages, etc. etc.
Tom.blogger.com
blogge.rs
bloghi.com
blogpico.com
blogreaction.com
blogster.com
blurty.com
devhub.com
edublogs.org
evood.com
fc2.com
flukiest.com
flixya.com
gather.com
getjealous.com
hazblog.com
iblog.at
inube.com
insanejournal.com
livejournal.com
livelogcity.com
multiply.com
my.opera.com
my.telegraph.co.uk