Collections of Chemistry Links EdHelper.com Part of a larger site mainly for teachers, providing an extensive list of lesson plan links as well as general resource links in Chemistry (I'm listed :-) PSIgate Chemistry An extensive searchable database of links to all kinds of WWW chemistry sites and materials. Additional (non-chemistry) information available at the site. Chemistry Teaching Resources Established by Knut Irgum and updated by Svante Årberg, this classic resource is full of good stuff. From Umeå University, Sweden. Chemdex Extensive index of sites maintained by Mark Winter at the University of Sheffield (UK). Ron Rinehart's Chemistry Web Resources And a lot of them there are, too! Many useful things for both teachers and students. And in the unlikely event you can't find what you want, you will at least be entertained by Prof. Rinehart's sense of humor. Jim Martindale's Virtual Chemistry Center This is a fantastic site with too much information to even attempt to describe. MANY links to more.