Green Chemistry, as its name implies, is an environment friendly practice of using chemistry to prevent pollution. The US Environmental Protection Agency (EPA) created the Green Chemistry Expert System software that can be freely downloaded from this site. The program can be used to assess hazardous substances in chemical reactions, learn about green synthetic methods, design safer chemicals by...

Created by researchers at MIT's Software Tools for Academics and Researchers (STAR) initiative, this website offers interested parties a 3-D protein viewer that "allows students to learn key concepts about the biology of proteins in an interactive manner." First-time users may want to start by clicking on the "Video Tutorial" on the homepage to get a basic sense of how the viewer works. The site...