MedWorld
A really great site with all sorts of medical info.

The Medical Education Ring
A webring focused on medical education.
Numerous good sites, and a good starting point.

The SuccessTypes Medical Education Page
This Texas Tech University site has links, a forum, great information, and even a Learning Style Type Indicator that might help you study more effectively.

Kaplan
The test preparation company.
They have assorted information here, including information about applying to medical school and about their MCAT course.

Princeton Review
Another test prep company.
Their site also has info on the MCAT and other aspects of applying to medical school.

The Berkeley Review
This prep course is praised by many students as being one of the best.