Open access virtual labs from North Carolina State University

Provides users with advanced drawing tools, the ability to identify tautomers, name structures with up to 50 heavy atoms, 3D viewer, and the ability to export to a PDF. Similarly to SciFinder, ChemSketch provides templates for various chemical structures including organics, organometallics, polymers, etc. Additionally, ChemSketch allows users to create a structure and subsequently search PubChem for the structure’s or substructure’s compound summary.

Periodic table with electron configuration and plot data.

Has Virtual Molecular Model Kit App, which includes a complete organic chemistry course with diagrams, animations, and simple quizzes. The Model Kit App allows users to load models from the following data sources: PubChem; Protein Data Bank; NIH/CADD Resolver, and others.

Really good chemistry blog on all sorts of topics.

Video lecture of first course in general chemistry from University of California at Irvine.

A full-featured chemical editor that allows users to draw, edit, publish, render, import, export, and convert between various chemical and graphical file formats. Marvin also allows users to check the validity of structure and valence to provide further guidance.