GETGIFTSFORFREE.com, POWER2SOURCE.com, and TECHGIFTSFORFREE.com work and I received an item but for those that signed up very early, which corresponds to about 2% of total sign ups, can actually get free products once it is cycled.
Try Free Apple Mini site (no referrals needed to be eligible to receive free products.)
Just complete 1 offer (I selected 30 day trial of efax.com which is the easiest and cancelled the account to avoid being charged. From my experience, try for 15 days and cancel the account. In a few days of cancelling, you get a credit for it.)
[Link: FreeMiniMacs.com]