links promoted in tamilnadu science text books

www.biology-online.org
www.enchantedlearning.com
www.wisegeek.com
www.visionlearning.com
www.chymist.com
www.worldanimal.net
www.sciencecentral.com
www.tutorvista.com
www.chemguide.co.uk
www.teach-nology.com
www.futuresouth.com
www.diethealthclub.com
www.simplescience.net
www.learnnext.com
www.school-for-champions.com