American Institute of Architects, Philadelphia Chapter
Central Philadelphia Development Corporation - 50th Anniversary Forum Series
Community Design Collaborative
Congress for the New Urbanism: CNU XV in Philadelphia
Delaware Valley Regional Planning Commission
Preservation Alliance for Greater Philadelphia
Society Created to Reduce Urban Blight (SCRUB)
Summary of Kelo v. City of New London decision
The Philadelphia City Planning Commission
The Philadelphia Parks Alliance
The President's House Design Competition: Five semi-finalist teams have been named in the design competition. The models will be on display at the National Constitution Center until September 13th, 2006.
"The Skinny": Phillyskyline.com's graphical listing of all major development projects in Philadelphia