Right now, you can enter daily for your chance to win instant prizes. The prizes include cash cards worth between $25 and $200, plus free coupons for Emerald Nuts. 500 instant prizes will be awarded in total.
In addition, starting March 15th, you can pick the team that you think will go farthest in its bracket and your favorite team. If you correctly pick the team that really goes the farthest, you'll be entered for the chance to win $10,000. Everyone who picks a favorite team will be entered to win $5,000. If you don't want to pick your own, teams will be assigned at random.
You can also enter by text, but if you do, your teams will be assigned randomly.
Entry into Emerald Nuts' Underdog Bracket Sweepstakes is open to US residents aged 18 and above. Enter daily through April 15, 2010.