gnetwerker's Journal: Open-Source Briefing for Congressmen?

I was chatting with one of my elected representatives recently, and he asked me to give him some material to educate himself on the subject of Open Source Software and its variants. I immediately mentioned The Cathedral and the Bazaar and The Open-Source Definition, but after that I had to start scratching my head. I've been working with FOSS since the late 1980s, but I've never thought about explaining it to a politician. Any ideas on good magazine articles, introductory texts, or other basic, non-nutcase documents for a gentle introduction?