A tool developed for teachers that lets students get private feedback in the classroom.

Cooking With Ruby On Rails

A free e-book on developing Rails applications based on curriculum from our introductory course.


A unique tool allowing users to create batches of file copy operations. Use CopyQ to

  • Automate backup operations
  • Copy one file to multiple destination directories
  • Copy or move multiple source files to multiple destinations over a network
  • Save lists of files to be copied later
  • Easily migrate entire directory structures to a new computer

Short Attention Span Docbook

Get started authoring books and articles with the versatile Docbook format and this easy-to-use build chain. Completely free, and completely open-source.