Nestlé Purina PetCare iPad 2 Sweepstakes

https://www.facebook.com/NestlePurinaCareers/app_173984682708605
Must be enrolled (at the time of entry) as an undergraduate or graduate student at an accredited college or university in the US.
Limit one entry per person/e-mail address for each entry period (four total entries).
PRIZES AND APPROXIMATE RETAIL VALUES:
Entry Period (9:00 a.m. CT to 8:59:59 a.m. CT) Prize and Approximate Retail Value (“ARV”)
1 February 7, 2012 – April 3, 2012 One 16 GB iPad® 2, ARV: $499
2 April 3, 2012 – May 15, 2012 One 16 GB iPad® 2, ARV: $499
3 May 15, 2012 – June 26, 2012 One 16 GB iPad® 2, ARV: $499
4 June 26, 2012 – August 7, 2012 One 16 GB iPad® 2, ARV: $499