Quoting Mark Winter <m.winter@sheffield.ac.uk>:
Henry's recent note reminds me of his earlier note about the wiki concept and so I'd like to point out that WebElements now has a (largely unpopulated) "wiki" at
http://www.webelements.com/wiki/
ChemWiki: Chemistry web pages in continual change as a result of efforts by the users. Eventually (hopefully) you will find pages about many aspects of chemistry here - and if you like you can edit them, and add new pages as well. That's the idea in fact. While WebElements is a periodic table thing, I've put a framework in to try and encourage the build up of any chemistry themes.
Wikipedia is a general encyclopedia in which chemistry is well supported: http://en2.wikipedia.org/wiki/Chemistry It's fully open source, but I don't know how populated in the Chemistry area. The full wikipedia has over 190,000 articles... in multiple languages. I'm not saying to stop WebElements wiki, but there is much to do on the chemical web, and duplicate of efforts seems inappropriate (IMHO). Wikipedia is currently strugling with its success... maybe webelement can make a chemistry wiki node for wikipedia? Egon