CAMEO Chemicals
   Online library of data sheets containing response-related information and recommendations for hazardous materials.
   http://cameochemicals.noaa.gov/

CCOHS: MSDS Management Service
   Occupational health and safety responsibilities relating to MSDSs and WHMIS requirements.
   http://www.ccohs.ca/products/msds/msdsservice.html

CCOHS:Understanding a Material Safety Data Sheet (MSDS)
   Explanation of each category of information found on an MSDS. Canadian Centre for Occupational Health and Safety (CCOHS)
   http://www.ccohs.ca/products/Supplements/MSDS_FTSS/msds_understand.html

CHRIS - Chemical Hazards Response Information System
   Information needed for decision-making in emergencies that occur during the water transport of hazardous chemicals.
   http://www.chrismanual.com/

Chemical Safety Information
   Oxford University's chemistry safety information, which includes MSDS data.
   http://physchem.ox.ac.uk/MSDS/

ERG 2004
   A guide to aid first responders in (1) quickly identifying the hazardous material(s) involved in a transportation incident, and (2) protecting themselves and the general public during this initial response phase of the incident.
   http://hazmat.dot.gov/pubs/erg/gydebook.htm

Environmental-Expert
   Offering free accessible software and web resources for Material Safety Data Sheets (MSDS).
   http://www.environmental-expert.com/software.asp

Kansas State University-MSDS
   Large link list of sources of Material Safety Data Sheets.
   http://www.phys.ksu.edu/area/jrm/Safety/msds.html

MSDS Xchange
   This free internet portal contains over 2000 links to chemical manaufacturer web sites, accessing over 400,000 MSDS across the Internet.
   http://www.msdsxchange.com

MSDS-Search
   The first place to look for an MSDS, the most comprehensive address for free information related to the document known as a Material Safety Data Sheet (MSDS).
   http://www.msdssearch.com/

Material Safety Data Sheet Guide
   Information on the purpose and required contents of MSDS in the U.S.
   http://meridianeng.com/msds.html

Material Safety Data Sheets (MSDS) for Infectious Substances
   From the Office of Biosafety, Health Canada. The MSDS listing is produced for personnel working in the life sciences as quick safety reference material relating to infectious micro-organisms.
   http://www.phac-aspc.gc.ca/msds-ftss/

NIOSH Pocket Guide to Chemical Hazards (2005-149) | CDC/NIOSH
   Data on 677 chemicals or substance groupings found in the work environment.
   http://www.cdc.gov/niosh/npg/

NIOSH/WHO International Chemical Safety Cards: International Program on Chemical Safety
   Summarizes essential health and safety information on chemicals for their use at the "shop floor" level by workers and employers in factories, agriculture, construction and other work places.
   http://www.cdc.gov/niosh/ipcs/icstart.html

Reade Advanced Materials
   MSDA Data Sheet of products. Alphabetical listing.
   http://www.reade.com/Products/Product_Index.html

Scientific Instrument Services
   MSDS Sheets of products manufactured and distributed by Scientific Instrument Services.
   http://www.sisweb.com/index/referenc/msds.htm

Sigma-Aldrich MSDS Database
   Searchable index of chemicals produced by any of the Sigma-Aldrich subsidiaries.
   http://www.sigmaaldrich.com/Help_Pages/Help_Welcome/MSDS.html

The MSDS Discussion Forum
   A searchable web-based bulletin board for discussion of MSDS and safety-related issues. Part of a much broader site that includes an MSDS FAQ, an annotated list of free MSDS sites on the Internet, software, suppliers, books, and even an MSDS fun page.
   http://www.ilpi.com/msds/forum.html

The MSDS HyperGlossary
   A searchable, hyperlinked, on-line glossary with definitions, MSDS relevance, links for over 120 common terms found on Material Safety Data Sheets.
   http://www.ilpi.com/msds/ref/

Vermont SIRI MSDS Collection
   Searchable MSDS database of chemicals and chemical compounds.
   http://hazard.com/msds/