I got four Netflix "friends and family" codes in the mail, which are good for a 30-day free trial instead of the usual two weeks. Also, for each one claimed, I get an extra rental.
1. M91165391005
2. M94169321025
3. M99166361055
4. M98160361075
They're one-time use codes, and they expire on June 15th, so jump on 'em if you're interested.
*edit 6/15--guess these weren't popular. If anyone's wondering, they all seem to still be active for a few more hours.*