Created and maintained by Dr. Dave Woodcock of the Chemistry Department at Okanagan University College in British Columbia, Canada, this site features models of over 1,100 molecules in .pdb, or Chemscape Chime, format (link to free download provided). Users may search the molecular database using an internal search engine or browse by category or alphabetically. Index page entries include the...

This fantastic resource for college-level students of chemistry provides abundant images and explanatory text on molecules and molecular systems. The site's main provider is Richard Catlow, Director of the Davy Faraday Research Laboratory at the Royal Institution of Great Britain. Molecular Universe presents a collection of lessons, arranged into categories such as Building in Three Dimensions,...

Dr. Phillip Barak, Associate Professor of Soil Science at the University of Wisconsin-Madison, has put together this "web-based focal point and resource for 3-D visualizations of molecules and minerals." A collection of 3-D, interactive models of molecules and minerals, these detailed, color images and animations are designed for instructors and students alike. Visualizations include soil organic...