Where to find quality free music and sound effects for your games

Music and sound effects are an important part of the game. Probably if you don't have them, your game will be overlooked by the players and portal owners and eventually you will consider it a failure. Although that is not always true and there are great games without any sound, its always better to have some high quality effects and nice music. Many people don't include music because they don't know where to find it.
I'll share with you where I choose music and effects for my games.

1. incompetech.com - great music by Kevin MacLeod, licensed under Creative Commons: By Attribution 3.0. You can learn more about CC3 license here - Creative Commons 3.0
2. newgrounds.com - at the good, old newgrounds you will be able to find anything, just be careful with the license
3. opengameart.org - a lot of random game resources. You can find good sound effects and loops made by newbie composers. Again be careful with the licenses
4. freesound.org - tons of sound effects and loops. Great place to start your search.
5. google.com - just look around for appropriately licensed music