mySpace
Well, it looks like I jumped on the bandwagon.
My dear Erika got me started. I’ll see what I can do with it. This should be interesting.
But I won”t neglect my sites since I have total control over them.
Click on the logo to get to my mySpace "Homepage". 
Guess which name I chose for the username? PRKW, of course. But it was taken so I attached an underscore at the end to comply with their standards. Anyway, I kept it simple. I’ll get around later to set up a proper "profile" page.
Update: They don’t let you do any really serious changes.
At least there is only one of their ads showing and it is right on top. The background I made is the same as the one here. So if you get the proper background you know that this site is also running.