Dictionaries and Encyclopedias
How to Find Chemical Information (1998); Chemistry Sources in the Electronic Age.which is organized by topic, e.g., bonding, atoms, etc.
Scorecard. Evaluates toxic sites where you live.
Searchable database by common name, CAS registry number or molecular weight and formula.
Internet Public Library's Chemical Sciences.
The World of Chemistry Contains 26 videos on such topics as molecules, electrons, protons.
CHEMINFO. Searchable by controlled vocabulary and natural language.
ChemWeb.com Good for leading databases and journals. Also good for subjects. Sign in required.
Chemistry.org The website of the American Chemical Society
CHEMnetBase Provides access to several chemistry dictionaries. Other titles are by subscription.
NIST Chemistry WebBook Provides thermochemical data for organic and inorganic compounds and IR spectra, mass spectra and UV/VIS spectra.
NIST Virtual Library (Chemistry) The National Institute of Standards and Technology provides information about technical subjects. Off to to right you will see a navigation bar. Click on CHEMISTRY and you will get a list of data bases, periodic tables, associations and other web resources.
Hazardous Substances Data Bank "HSDB is a toxicology data file on the National Library of Medicine's (NLM) Toxicology Data Network (TOXNET®). It focuses on the toxicology of potentially hazardous chemicals. It is enhanced with information on human exposure, industrial hygiene, emergency handling procedures, environmental fate, regulatory requirements, and related areas. All data are referenced and derived from a core set of books, government documents, technical reports and selected primary journal literature. HSDB is peer-reviewed by the Scientific Review Panel (SRP), a committee of experts in the major subject areas within the data bank's scope. HSDB is organized into individual chemical records, and contains over 4800 such records."
WWW Chemistry Guide Covers:
Materials Safety Data Sheets
Periodic Table of the Elements
Tox Town "An introduction to toxic chemicals and environmental health risks you might encounter in everyday life, in everyday places."
Archives of ChemEd (discussion group)
Chemistry Links This is one of the best sources that I have seen;its diviided by sub topic like oganic, inorganic. Many links within the topics which take you to the literature of a certain field.
Common Compound Library
Elsevier Chemistry Journals
This site is a listing of journals, organized by subject, published by Elsevier. You won't get full text but you will get contents and frequently an abstract.
ACS Journals and Magazines (American Chemical Society).
See also LC*LG: The Magazine of Separation Science which also provides table of contents in the area of liquid and gas chromatography.
Atomic Structure and the Periodic Table "This "online textbook" is designed to provide a thorough, in-depth treatment of this topic at the first-year college or advanced-HS levels, with a special focus on the underlying concepts. "