This is Useful links Section!
Here I will provide you with some useful links for Chemistry:
http://en.wikipedia.org/wiki/Chemistry
http://www.acs.org/content/acs/en.html
http://www.rsc.org/
http://chemwiki.ucdavis.edu/
http://www.chemguide.co.uk/
http://www.sparknotes.com/chemistry/