Cool things I've been enjoying online

I'm not a total techie--not by far--but a few different circumstances this week have sent me to some sites that I'm having a lot of fun with. I may be the last person in the world to know about these funky spots; if so, don't ruin my joy. Pretend you've never heard of these either.

Stumble upon is where it all begins--a very fun way to search around:
www.stumbleupon.com

Then there are these fun ones:
Musicovery
Pandora
Visuwords
Librarian Chick
Media Convert (this one is an easier way to take screen shots)