I'm picking up (and creating!) quite a few phrases here....
Blogbuddies (or as Charlie calls them; Bogbluddies) - blogging friends, those met through blogs.
Blogosphere - picked up at Michele's, the blogging universe.
Linkwhore - one who is free with their links (Aginoth coined this one!)
Blogpimp - one who actively pimps other blogs (mea culpa, mea culpa!)
Blogpet - a pet who blogs (now, don't laugh.......)
Blogfodder - a rich source of stuff to be used in blogging (I just thought of this one!) such as Blogthings - or my friend J! :-)
Any more blogging vocabulary out there?