Also, a great site for freebies is Free Stuff Times. I've received so much free stuff thanks to this site over the years.
They have a contest/sweepstakes tab and I won $100 from a Best Buy instant win game last year! I also won a couple smaller contests that were posted there too.
I love freebies and trying new products. There is such a thing as free in this world!
Happy freebie hunting!