Regents Exam Preparation Center
http://www.regentsprep.org
The goal of this free online learning center is to help school students prepare for comprehensive exams in English,  math, global studies,  U.S. history,  earth science,  biology,  chemistry, and physics.

Regents Exams for New York State
http://www.barronsregents.com/
Questions and answers,  on-line test preparation.

Regents Review Live
http://www.regentsreviewlive.net