Understanding Free Software Licenses

If you're like me software licenses bore you to tears.  No really, I can barely get to the second paragraph before my eyes glaze over and start to droop.  As such, a reasonable business idea might be to gather them all together into a book and market them as a cure for insomnia.  ;)

Thankfully, I recently ran across this infographic by Paul Bagwell that helps sort out the differences between the most popular free(dom) software licenses:

A copy can be found here, in case the original is lost.

Most importantly, the graphic does not cause drowsiness, at least in this subject.  Read on to the discussion at Hacker News if you'd like to read a few suggestions on how to improve it.