Two free sites for patent research recommended by James R:
http://www.sumobrain.comhttp://www.freepatentsonline.comThese sites offer free patent searching with more data and more features than any other free site, including free PDF downloading, annotating documents, organizing research into folders, sharing documents with other users, and alerts for new documents of interest.
Virtual Library: ChemistryChemistry in its Element Podcasts (Chemistry World, RSC)
Cosmetic IngredientsLabLit - The Culture of Science in Fiction and Fact
SyntheticPages.org