HOT: Donate $15, Get $15 from Groupon!
** It appears the only charity that gives you $15 back in credit is GreenPeace. The other three seem to have matching grants instead – so you give $15, someone matches it and your gift ends up being worth $30. **
You are basically able to donate to charity completely FREE!
Just click through on the “Super Bowl Spots” in the upper right hand corner and select the charity you want to support.