Local Organizations:

Green Plan Philadelphia http://www.greenplanphiladelphia.com/

NeighborhoodsNow http://www.neighborhoodsnowphila.org/

Fels Institute of Government http://www.fels.upenn.edu/civic-exchange/

Philadelphia City Planning Commission (www.philaplanning.org)
Delaware Valley Regional Planning Commission (www.dvrpc.org)
City of Philadelphia (www.phila.gov)
Center City District (www.centercityphila.org)
10,000 Friends of Pennsylvania (http://www.10000friends.org/)
American Institute of Architects Philadelphia (www.aiaphila.org)
Delaware River Port Authority (www.drpa.org)
Fairmount Park Commission (http://www.fairmountpark.org/)
Pennsylvania Horticultural Society (http://www.pennsylvaniahorticulturalsociety.org/home/index.html)
Southeastern Pennsylvania Transportation Authority (www.septa.org)
East of Broad Improvement Association
http://www.ebaphila.org/homepage.htm

AASHTO – The Voice of Transportation
http://www.transportation.org

American Architectural Foundation
http://www.archfoundation.org/aaf/aaf/index.htm

American Bar Association (ABA)
http://www.abanet.org
 
ABA Land Use and Zoning Committee

http://www.abanet.org/dch/committee.cfm?com=RP230000

American Institute of Architects (AIA) Washington, DC
http://www.aia.org/
 
AIA List of Committees
http://www.aia.org/nav_kc
   
AIA Pennsylvania
http://www.aiapa.org/
 
Philadelphia Chapter AIA
http://www.aiaphila.org

Urban Design Committee & Housing Committee
http://www.aiaphiladelphia.org/about_committees/

American Planning Association -- NEW!
http://www.planning.org/

APA Planning Advisory Service
http://www.planning.org/pas/

APA Planning Books
http://www.planning.org/APAStore/
 
APA List of Committees
http://www.planning.org/divisions/

American Society of Landscape Architects
http://www.asla.org/

Avencia Geographic Analysis (GIS) Company
http://www.avencia.com

Bicycle Coalition of Greater Philadelphia -- NEW!
http://www.bicyclecoalition.org/

Blueprint for American Prosperity (Brookings Institution) -- NEW!

http://www.brookings.edu/projects/blueprint.aspx

Building Smart Alliance
http://www.nibs.org/buildingsmart3.html

CEOs for Cities
http://www.ceosforcities.org

Campaign for Affordable Housing
http://www.tcah.org

Center for Community Partnerships (U of Penn)
http://www.upenn.edu/ccp/index.php

Center for Housing Policy
http://www.housingpolicy.org

Center for Watershed Protection
http://www.cwp.org/

City Parks Association (Philadelphia)
http://www.cityparksphila.org/

Clinton Climate Initiative
http://www.clintonfoundation.org/cf-pgm-cci-home.htm

Community Design Collaborative
http://www.cdesign.org

Community Land Trust Corporation
http://commlandtrust.org/about.html

Community Transportation Association of America
http://www.ctaa.org/

Congress for the New Urbanism
http://www.cnu.org/

Delaware Valley Regional Planning Committee (DVRPC)
http://www.dvrpc.org/

Delaware Valley Smart Growth Alliance
http://www.delawarevalleysmartgrowth.org

Design Advocacy Group of Philadelphia
http://www.designadvocacy.org/

Design Centre for Sustainability (U of British Columbia)
http://www.dcs.sala.ubc.ca/

Enterprise Foundation
http://www.enterprisecommunity.org/

Environmental Law Institute
http://www.eli.org/

Fels Institute of Government
http://www.fels.upenn.edu/

Governor’s Green Council (PA)
http://www.gggc.state.pa.us/gggc

Green Building Initiative
http://www.thegbi.org/home.asp

Green Communities (Enterprise Community Partners)
http://www.greencommunitiesonline.org/

Green Village Philadelphia
http://www.greenvillagephiladelphia.org

Housing Alliance of Pennsylvania
http://www.housingalliancepa.org

Institute for Local Self-Reliance
http://www.ilsr.org/

Institute for the Study of Civic Values
http://www.iscv.org/

International Downtown Association
http://www.ida-downtown.org

International Making Cities Livable
http://www.livablecities.org

LEED for Neighborhood Development
http://www.usgbc.org

Lincoln Institute of Land Policy
http://www.lincolninst.edu/

Local Government Commission
http://www.lgc.org

Local Initiatives Support Corporation (LISC)
http://www.lisc.org
 
Philadelphia LISC
http://www.lisc.org/content/offices/detail/611/

Mayors' Institute on City Design
http://www.micd.org/

National Association of Homebuilders
http://www.nahb.org/

National Center for Safe Routes to School
http://www.saferoutesinfo.org/

National Center for Smart Growth (U of Maryland)
http://www.smartgrowth.umd.edu/

National Endowment for the Arts
http://www.nea.gov/

National League of Cities
http://www.nlc.org/

National Organization on Disability
http://www.nod.org/

National Trust for Historic Preservation
http://www.nationaltrust.org

Natural Lands Trust
http://www.natlands.org

NeighborhoodNow
http://www.neighborhoodnow.com

NeighborWorks America
http://www.nw.org

PA Environmental Council
http://www.pecpa.org

PA Planning Association
http://www.planningpa.org/

Partners for Livable Communities
http://www.livable.com

Philadelphia LANDvisions
http://www.landvisions.org/

Philadelphia Parks Alliance
http://www.philaparks.org/

Philadelphia: The Next Great City
http://www.nextgreatcity.com/

PhillySkyline.com
Placemaking for Communities
http://www.pps.org

Plan Philly
http://www.planphilly.com

Planetizen
http://www.planetizen.com/

Planners Network
http://www.plannersnetwork.org/

Planners Network of Delaware Valley
http://www.pn2007.org/chapters_events/contacts.html

Playbook for Green Building + Neighborhoods
http://www.greenplaybook.org

Project for Public Spaces
http://www.pps.org

Smart Growth Network
http://www.smartgrowth.org

Sustainable Buildings Industry Council
http://www.sbicouncil.org/

Trust for Public Land, The
http://www.tpl.org/

U.S. Conference of Mayors, The
http://www.usmayors.org/

U.S. Green Building Council
http://www.buildinggreen.com/

Urban Land Institute (ULI)
http://www.uli.org
 
Philadelphia ULI
http://philadelphia.uli.org

Urban Watershed Perspectives
http://www.urbanwatersheds.com

Water Resources Association of the Delaware River Basin
http://www.wradrb.org/

Planning News
National and worldwide
Planetizen (www.planetizen.com)
American Planning Association (www.planning.org)
Cyburbia (www.cyburbia.org)
The Next American City (www.americancity.org)
Local
Philly Skyline (www.phillyskyline.com)
Changing Skyline (www.changingskyline.blogspot.com)
Design Advocacy Group (www.designadvocacy.org)

Data Resources
Local
TRF Policy Map http://www.policymap.com/ 
Philadelphia Zoning Code (http://municipalcodes.lexisnexis.com/codes/philadelphia/)
Philadelphia CityMaps (http://citymaps.phila.gov)
Pennsylvania Spatial Data Access (www.pasda.psu.edu)
National and worldwide
American Planning Association (www.planning.org)
Brookings Institution Center on Urban and Metropolitan Policy (http://www.brook.edu/)
Congress for the New Urbanism (http://www.cnu.org/)
Urban Land Institute (www.uli.org)
U.S. Census Bureau (www.census.gov)
U.S. Department of Housing and Urban Development (www.hud.gov)
HUD User (www.huduser.org)
The Urban Institute (www.urban.org)
National Trust for Historic Preservation (www.nationaltrust.org)
Lincoln Institute of Land Policy (http://www.lincolninst.edu/index-high.asp)
National Housing Institute (www.nhi.org)
Google Earth (http://earth.google.com/)
Windows Live Local (http://local.live.com/)
http://www.cml.upenn.edu/nis/