Many, but the one that sticks out is "First Cool Hive" by Moby which I heard in Scream right before the end credits. Freaking awesome song.

My best find would have to be "Winter warz" in this movie

http://1.bp.blogspot.com/_pf91UFxYJM...5B224kb%5D.jpg

More will come to mind later but that's definitely my best find

The ones from the Dear John OST are good.

The Endless Sea (Iggy Pop) from Dogs in Space

The Perks of Being a Wallflower had a great soundtrack, too bad not all the songs from the film made it to the physical copy. One discovery was Bongwater's "Ye Olde Backlash". I had never picked up on them when their '90s albums were released. Now I'm hunting down their better releases.

What I've Done - Linkin Park

Heard it in the Transformers movie.

umm eww... I hate Linkin Park sorry... Don't hate you hate them...

What did Linkin Park do to you? In other words, why?

I gave up on Linkin Park after they turned bad years ago. They only made 2-3 good songs since, one of them being Given Up.