LitCharts is a service that provides condensed outlines and summaries of classic literature. The outlines and summaries are far shorter than those you would find in Sparknotes or Cliffnotes. Most of the outlines and summaries are ten pages, give or take a page or two. What I like about LitCharts is that they color code the themes addressed and symbolism within a particular work. The color coding makes it easy to quickly pick out the themes and symbols in each chapter of a book. LitCharts can be viewed online, downloaded as PDFs, or accessed through their iPhone app.
Applications for Education
LitCharts provides nice outlines and summaries but doesn't provide so much information that a student can avoid actually reading the books you've assigned to them. In this way LitCharts could be useful study aids for students.