An online math game for elementary and jr. high levels. Appears to be a bit like minecraft, but more specifically math-oriented. Reasonable price, and available at a discount through Homeschool Buyers Co-op.
This online program provides adaptive reading passages on history and science.
This resource provides virtual manipulatives and online lessons for math learning.
An inexpensive, rule-based spelling program.
Another site with videos for elements in the Periodic Table.
This site is an interactive atlas, timeline and encyclopedia of world history.
A no-frills, free online typing course.