Websites for GRE preparation

www.testpreppractice.net

http://learnwordlist.com

video lectures websites

www.planettutor.in

http://enggmath.com

http://nptel.iitm.ac.in/index.php

http://lecturefox.com

http://ocw.mit.edu/ocw web/web/home/home/index.htm

www.learnerstv.com

http://oyc.yale.edu/

http://academicearth.org

http://freevideolectures.com