This site has free guides to a huge collection of novels. Guides include a short summary of the novel, plus summaries of chapters, character profiles, metaphor and theme analyses, and author biographies. If you register for a free account you can also access discussion forums. (Warning: there are some very persistent video ads on this site! Nothing inappropriate, but definitely annoying!)
Online, interactive program for learning music reading and theory.
This non-profit organization offers over 100 free self-paced, online, college level courses.
This online math program is designed to help students with math problems (including dyscalculia.)
This hands-on grammar curriculum includes CD ROMs, teacher manuals, and games for learning gramma
Online, super-hero themed science games for elementary and middle school levels.
This program includes videos, worksheets and quizzes for history learning in jr.