Casey Bisson will kick off our series with an Introduction and Overview of Open-Source in Libraries .
In fact he wrote the book on Open-Source Software for Libraries and here's the ALA TechSource link:
Open-Source Software for Libraries
and here's the direct link to a CC-licensed version of the Library Technology Report of the same name
You might want some information on his work on Scriblio at Plymouth State University
Here's the blurb on Casey from the ALA TechSource web page:
Casey Bisson, named among Library Journal's Movers & Shakers for 2007 and recipient of a 2006 Mellon Award for Technology Collaboration for developing Scriblio (formerly WPopac), is an information architect at Plymouth State University. He is a frequent presenter at library and technology conferences and blogs about his passion for libraries, roadside oddities, and hiking in New Hampshire's White Mountains at MaisonBisson.com