MySpace

I searched for Stacie Orrico (singer) under the Myspace tab, and here is a picture of her :D (from http://www.myspace.com/stacieorrico).

I didn't have to login to view her profile, or her picture.

I reckon MySpace is a good social networking service, and it seems very easy to use it because it's set up in a simple way- clearly stating which tabs are for what, unlike many other sites where everything is like a maze.