Mikado method to help refactorings

I found a very interesting method described at http://mikadomethod.wordpress.com/ about how to decompose a large refactoring into manageable chunks, so that it can be done safely (code is never broken).

History of programming

A hilarious post about the history of programming languages: http://james-iry.blogspot.com/2009/05/brief-incomplete-and-mostly-wrong.html.