"a federal public health agency of the U.S. Department of Health and Human Services. ATSDR serves the public by using the best science, taking responsive public health actions, and providing trusted health information to prevent harmful exposures and diseases related to toxic substances."

Provides a description of atomic orbitals, a program for drawing orbitals, and a large table of atomic orbitals.

Online textbook of NMR concepts. 13 chapters.

Can search site by name, molecular formula, or CAS number; gives a structure in addition to several physical properties such as foulard weight, melting point, boiling

This website can be used to do various calculations related to chemistry, such as molar conversions and balancing chemical equations

"Chemistry World is the print and online magazine of the Royal Society of Chemistry, the largest organisation in Europe for advancing the chemical sciences. With news, features, opinion, podcasts and the latest job advertisements, it's the best way to keep up to date with the global chemical sciences community."

Career information from Bureau of Labor Statistics Occupational Outlook Handbook

From Ohio State University; flashcard decks are provided for various organic reactions, simply click on a reaction type and flip through the flashcards.

BLS Occupational Outlook Handbook provides information on careers in Engineering.

BLS Occupational Outlook Handbook on Environmental Scientists and Specialists

Enzyme database funded by the German Federal Ministry of Education and Research

Occupational Outlook Handbook gives career information for Geoscientists and Hydrologists.

Structures and formulas for numerous organic compounds and reactive intermediates

This is a government site in Illinois that handles issues in the welfare of children and families. This would be helpful for knowing laws and regulations regarding children's safety.

General Chemistry Online! Introduction to organic chemistry

NIOSH Pocket Guide to Chemical Hazards (NPG) informs workers, employers, and occupational health professionals about workplace chemicals and their hazards.

National Institute of Standards and Technology (NIST) Collection of thermochemical and thermophysical data complied by the NIST

The Elemental Data Index provides access to the holdings of NIST Physical Measurement Laboratory (PML) online data organized by element. It is intended to simplify the process of retrieving online scientific data for a specific element from various online databases, including atomic spectroscopy, atomic data, x-ray absorption, and nuclear data.

National Institute of Standards and Technology (NIST) Gives the values of scientific constants and explains the SI measurement system

This "reference is meant for students who are starting out in the area of Organometallic Chemistry as well as those who wish to review and interrelate concepts for their class, Oral Exams or placement tests."

Royal Society of Chemistry gives information on each element, such as discovery, origin, and properties.

A look at the fundamental properties of polymers. "The MAST modules represent the cumulative efforts of approximately 100 high school teachers, 15 university professors and several graduate and undergraduate students over a three year development period funded by the National Science Foundation. Thank you for accessing our site. These materials can be downloaded [here]."

"Science.gov searches over 60 databases and over 2200 selected websites from 15 federal agencies, offering 200 million pages of authoritative U.S. government science information including research and development results."

"...seminal papers in their fields [and s]ome ...interesting curiosities."

Introduction to statistical tools used for analytical chemistry

Online resources available from the Environmental Protection Agency.

The Valence Shell Electron Pair Repulsion (VSEPR). Lewis structures and molecular geometry; a glossary of chemistry terms is also provided

Contains a "set of Lewis Dot structures, Hyperchem 3D renderings, and Protein Databank files (*.pdb) for a variety of molecules."