Changes

[http://third-bit.com/about.html Greg Wilson] is the co-founder of [http://software-carpentry.org/about/ Software Carpentry], a volunteer organization that teaches basic computing skills to researchers in a wide range of disciplines. Greg has worked for 30 years in both industry and academia, and is the author or editor of several books on computing and two for children.

Twitter: [https://twitter.com/gvwilson @gvwilson]