Once: Win a years supply of books from betterworldbooks.com
Up for grabs is a years supply of books (or in real terms 12 times a $20 voucher)
To enter you need to
1. Follow @BWBooks on Twitter.
2. Tweet this (Click here or copy & paste the following into Twitter):
I just entered the @BWBooks "Year of Books" Contest. I can win a year's supply of books (and more)! (http://bit.ly/yearofbooks) #bwbcontest
They're obviously trying to cook their twitter account to get it better ranking.