Star Picks

Mathub  (http://www.mathub.com/) You have to register for access, but Mathub could be worth it. Describing itself as "the focal point for computational materials science on the web". It covers lots of material (excuse the pun) from the history of modelling to modelling in education by way of topical features and industry overviews. The site's webmaster, Michael Francis, also brings readers computational materials science news and a succinct online glossary.

Orbitron  (http://www.shef.ac.uk/chemistry/orbitron/)     Mark Winter, of WebElements fame, has done for atomic orbitals what he did for the elements. This evolutionary website reveals the inner workings of wave functions, electron densities, and radial distribution functions and so provides important clues to understanding the nature of how atoms stick together. The atomic orbitals, say the 5d or the 3p (take your pick they're all here), are rendered in dreamy metallic golds, pinks, and blues. Take a look for the art alone.

Chemistry (http://library.caltech.edu/collections/chemistry.htm)     Caltech librarian Dana Roth has put together a neat and precisely targeted collection of chemistry resources on the web. The linkages cover associations, societies and organizations, books, companies, hazards, conferences, databases, journals, patents and standards, and Dana's hot list. There are quite a few golden nuggets among the listings.