Just in time for the start of school, Northwest Airlines has announced 2 new courses at WorldPerks® University.For each course, read a short description of a product or service Northwest offers, answer 3 (simple) questions and earn 100 Northwest Airlines Worldperks miles.
WP101, WP102, WP200 have been available for a while now. WP201 and WP 202 were just added. That's up to 500 free Northwest miles! Plus, they have some extra credit opportunities if you do real well on your tests. Miles for "going to school" - sign me up! =P Here's the direct link