[user]

hello,

if you are familiar with medical scientific knowledge, you already know that Pubmed is probably the one and only source that most (if not all) medical scientific knowledge is published and gathered

is there anything similar for chemistry, both organic, inorganic, etc?

or a list of sources that would gather the most amount of knowledge in chemistry?

thanks

[Honclbrif]

Chemical Abstracts (accessed through Scifinder) or the Bielstein database (accessed through Reaxys, Crossfire, etc...) sounds like what you're thinking of. These do literature and structure searches. However, if you want to use these, you gotta pay. There's Web of Science and related resources for lit and author searches.  If you're at an institution, see what databases you have access to.

EMolecules and ChemSpider have data on individual compounds, and Organic Chemistry Portal has a lot of information about organic chem in general. All these latter sources are free.

[Cavillus]

Well, I know there is a site with really detailed and up-to-date informations about elements:

webelements.com

[hyte]

http://www-jmg.ch.cam.ac.uk/data/c2k/

http://www.liv.ac.uk/Chemistry/Links/links.html

for links those are what i know of. for open access:

http://www.chemistrycentral.com/ and
http://www.earlham.edu/~peters/fos/newsletter/02-02-06.htm#know (links can be outdated but good start)

any others?
if don't mind of google, http://www.scirus.com/ is alternative, not so good as but works 

[fledarmus]

Echo Honclbrif - the chemical equivalent to PubMed is Chem Abstracts (Scifinder) and/or Bielstein (Reaxys). These are very large databases which attempt to be up-to-date, comprehensive, are searchable using familiar chemical search functions, and point directly to the primary literature. They are also expensive to access. As a medicinal chemist, I am plugged into all three on an almost daily basis.