I'm a student of Computer Science and Mathematics at the University of Toronto. (You know.. the stuff that matters, as slashdot would say)
As I study for my exams this semester, I'm noticing a lot of the articles on mathematical logic, computer graphics, psycholinguistics, and computer ethics are extremely lacking. Some articles need to be created.. some need to be updated.. this has sort of inspired me to take a more active part and start to edit rather than just consume information as I have the last few years on wikipedia :>
A lot of film theory stuff is missing, too.
Wikipedia is amazingly cool, but the fact is that most articles are innaccurate or unreadable... we need more people !!