MashupChallenge.com - Make Mashups Win Prizes

Mashable, Pipes, MashupAwards, Mobile Web Design and Media Temple are sponsoring a contest for challengers all around the world to create the best mashups. The site gives away prizes for the top 10 winners each quarter that range from 50% off hosting for life to Nintendo Wii systems, but even more importantly it is a platform to help get your mashup seen by the world.

The top 5 of the big contest that ends on December 31st (and starts again January 1) will receive the biggest prizes and their Mashups will be left on the website for the month following the end of the contest.