"Mathtoons Media creates high level math learning tools that use wacky animation, humour and music. The Mathtoons Log App helps students learn how to change between exponential and logarithmic forms of an equation with the animated guidance of Captain Calculator and his assistant, Corporal MiniCalc."
The LitCharts Library provides chapter summaries to some of the most frequently read books in high school English curricula. It also features an iPhone App for reading. Teachers should be aware of this site as it bills itself as "the faster, downloadable alternative to SparkNotes."