Audio Hero - Over 250,000 royalty free music & sound effects for videos
TunePocket - Download 11,000+ royalty free music tracks and sound FX. Buy once, use forever. New music added daily. Save over 50% compared to most popular similar services. Incredible value!
Free Music Archive - Interactive library of high-quality, legal audio downloads
Fugue - Free and premium stock music for your videos, games, and UI
Premiumbeat - Premiumbeat.com provides high quality Royalty Free Music.
MAGIX Music Maker - Music Maker is a loop based music production, recording, editing, mixing and mastering that includes thousands of soundpools and virtual instruments.