Math curriculum for third grade through high school. There are video lessons to explain concepts, and step by step video solutions of every problem in the curriculum. I've seen and heard many great comments and reviews about this program. It's pretty expensive, and they apparently don't allow anyone to discount their products. But you can often find used copies on homeschool resale sites.
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.