A new site offering "high quality free audio content" is now available: www.loopsfree.com.
Here's what they say:
"You will find there a lot of free music stuff like loops, samples, one shots and synthesizer presets. Multi genre, from urban to pop and club sounds, few developers, only carefully selected high quality content and once again, all of this for free."
There will be a minimum of one free product per week.