ETS Net Provides access to information on taking the GRE, GMAT, LSAT, TOEFL and Praxis. Practice with sample test questions.
GRE Online The official GRE site allows you to register online for a GRE General or Subject Test, view scores online and order additional score reports
Kaplan Online Extensive resource for graduate school applicants. In addition to business, medical and law school information, includes nursing, dental school and accounting exam preparation.
The Princeton Review Provides information on entrance exams, admissions requirements & financial aid. Includes business, law and medical schools.
My GRE Tutor.com GRE practice tests, tutorials, hundreds of practice questions, a vocabulary tutor, as well as study guides.