Ben Ostrowsky is a systems librarian at Tampa Bay Library Consortium. His interest in intellectual property reform prompt him to work for the creative commons (broadly construed) as much as possible; his photographs are generally CC-By and his code is generally GPL.
Professional blog: 
SunCat 2.0 is an attempt to build a more Web 2.0-ish PAC. It's not yet in beta (as of 2007-05-10), but is scheduled to go into beta sometime in May 2007. The live site, which may be unavailable at anytime, is http://suncat2.tblc.org/. The project involves heavy structural editing of XSLT templates to transform the XML provided by Horizon Application Server into reasonably browser-friendly and eye-pleasing HTML, as well as Ajax widgets to shoehorn libraries' external content into the PAC.