This conversation centers around Robert Martin’s Rails presentation titled “25 Zeros”.

http://en.oreilly.com/rails2010/public/schedule/detail/14134

Part of the conversation dived into IDEs and Ryan sent me a link to Code Bubbles.

http://www.cs.brown.edu/people/acb/codebubbles_site.htm

Ryan later references the SOLID article in CODE Magazine by Derick Bailey.

http://www.code-magazine.com/Article.aspx?quickid=1001061