| Base Peak: Formerly "Mass Spectrometry on the Internet", an index page of mass spectrometry internet sites including links to mass spectrometry groups, companies, resources, and software. |
| ChemDex: A directory of chemistry resources on the WWW, located on the Sheffield chemistry server. |
| ChemFinder Searching: An index to chemical information on the Internet, with structures and physical properties, searchable by name, structure, CAS Number, and physical properties. |
| Chemical Directories, Indicies and Links Sites: A meta-listing of chemistry indicies - a subsection of Links for Chemists. |
| Chemical Resources: Many places to search chemical information in Internet, page held in Columbia. |
| Chemie.DE: Chemie.DE is an information service for the german chemistry community. It provides search engines for chemistry and various databases for chemical information. |
| ChemIndustry.com: Providing information on all facets of the world-wide chemical industry. Many links to web resources of interest to chemists and the chemical industry. |
| Chemistry Collection of Infostead Australia: A comprehensive Australian directory of links for all those with an interest in chemistry. |
| Chemsoc: Online networks in specialist areas, science, industry and product news, a comprehensive events database, job centre, access to major references, and society resources. |
| ChemWeb.com: Features searchable chemistry journals and databases, jobs, books, software, conferences diary and ChemDex+. |
| ChIN - The Chemical Information Network: Comprehensive directory of chemical information on the web. |
| Information Retrieval in Chemistry Server: A compendium of chemistry resources by field and by topic. |
| Links for Chemists: An extensive index of chemistry resources maintained at The University of Liverpool. |
| Medicinal Chemistry Links: A collection of links for chemists and students involved in organic, biochemical, computational, and/or medicinal chemistry research, maintained by Virginia Commonwealth University. |
| moreChemistry: Maintains lists of events, links and jobs. Registered members can promote their websites themselves. |
| Rolf Claessen's Chemistry Index: Links to freeware, discounted software, free databases, societies, spectroscopy resources, reaction mechanisms and online discussion forums. |
| The Wired Chemist: A collection of Chemistry resources, including links to other sites and data tables. |
| Top20Chemistry.com: Online directory for chemistry education in organic, analytical, bio, physical, electro, atmospheric, and several other topics. |
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