Chemistry: Challenges and Solutions is an introductory chemistry course consisting of 13 units of online text, 13 half-hour videos, three interactive labs, and a professional development guide. From Annenberg Foundation.

Basic chemistry help is available here for high school students. Chemtutor begins with the fundamentals and gives expert help with the most difficult phases of understanding your first course in chemistry.

The ChemWiki is a collaborative approach toward chemistry education where an Open Access textbook environment is constantly being written and re-written by students and faculty members resulting in a free Chemistry textbook to supplant conventional paper-based books. The development of the ChemWiki is currently directed by UC Davis Professor Delmar Larsen.

Videos on YouTube which have been recorded by Salman Khan.

Massachusetts Institute of Technology

A collection of virtual labs, scenario-based learning activities, and concepts tests which can be incorporated into a variety of teaching approaches as pre-labs, alternatives to textbook homework, and in-class activities. From Carnegie Mellon University.

By Anthony Carpi, Ph.D. From VisionLearning.

Prepared by Ed Love and Jill Reade, Launceston College, Tasmania Australia.

From Aus-e-Tute.

Virtual textbook by Stephen Lower.