I have just added a new link to the link-section: Scholarpedia.
In case you don't know of it - it's a most wonderful resource for certain scientific topics. Definitely one of the most amazing, useful and trustworthy resources on the net. In contrast to Wikipedia - the articles are written and edited by experts, and are peer-reviewed.
Allow me quote their main page:
The approach of Scholarpedia does not compete with, but rather complements that of Wikipedia: instead of covering a broad range of topics, Scholarpedia covers a few narrow fields, but does that exhaustively.
Currently, Scholarpedia hosts Encyclopedia of Computational Neuroscience, Encyclopedia of Dynamical Systems, Encyclopedia of Computational Intelligence and Encyclopedia of Astrophysics. Although all these will eventually be published in a printed form, they will also remain freely available and modifiable online. (Producing a hard copy of each encyclopedia is important for archiving; besides, many academicians have a preconception that the prestige of an online article is not as high as that of a printed one.)
If there is enough interest and support from the public, Scholarpedia will grow in the following directions:
* The neuroscience chapter of Encyclopedia of Computational Neuroscience will be a seed to start Encyclopedia of Cognitive Neuroscience, and then Encyclopedia of Neuroscience
* Encyclopedia of Dynamical Systems will be a seed to start Encyclopedia of Applied Mathematics, and then Encyclopedia of Mathematics.
* Encyclopedia of Computational Intelligence will be a seed to start Encyclopedia of Computer Science.
I have to issue a warning, however. The site acts much like the "Mirror of Erised" in Harry Potter... very addictive. You can spend countless hours marveling at the wonders of science here, but you might (as I have) develop a growing frustration that you would probably need more than one life to even begin to understand everything on there.
Anyway - if you need a trustworthy resource for science on the net... this is the place to go.