TheFreeSite.com

The FreeSite.com has been the best location on the web to find freebies, and samples. There list is always updated, and gives you detailed instructions on what the freebie entails.

The let you know about everything, from free webspace, free clipart, free samples, plus they have a contest/sweepstake section which keeps you up to date with all of the possible chances for you to win something for FREE!

I reccomend signing up for their newsletter, so you can always stay up to date!