The Japanese Website...

To tell the truth, I don't know many websites related to my career, just one and a lot of chemistry books in PDF. But that one is the best until now, because helps in the organic chemistry laboratory, specifically with the spectra. The link is: http://sdbs.db.aist.go.jp/sdbs/cgi-bin/direct_frame_top.cgi .

Well, this link isn't the home page. In general, the website is of a "National Institute of Advanced Industrial Science and Technology" (AIST) and is focus in all scientific relevant topics, like energy, environment, biotechnology, etc. This page originally is in Japanese, so I suppose that is from Japan. But the link that i provided is a spectral database for organic compounds, where you can seek by the name of the compound or another specific "thing" of the compound (molecular formula, molecular weight, atoms, etc.).

I visit this page weekly, to complete the report of the compound synthesized in the organic chemistry laboratory. And sometimes I visit the page because I'm bored and I seek typical compounds (TNT, urea, toluene, etc.).
I like this page because I found it interesting the spectra of the compounds and because helps me in the laboratory.