Coalition of Community Development Financial Institutions
http://www.cdfi.org/

Enterprise Community Partners
http://www.enterprisecommunity.org/

Local Initiative Support Corporation
http://www.lisc.org

Mortgage Bankers Association of America
http://www.mbaa.org/

National Association of Local Housing Finance Agencies
http://www.nalhfa.org/

National Housing Trust
http://www.nhtinc.org/

NCSHA: Complete List of HFAs
http://www.ncsha.org/section.cfm/4/39/187

Affordable Housing Finance
http://www.housingfinance.com/

Building Better Communities Network
http://www.bettercommunities.org

Housing Assistance Council
http://www.ruralhome.org

HUDCLIPS
http://www.hudclips.org

HUD USER
http://www.huduser.org/

Neighborhood Economic Development Advocacy Project
http://www.nedap.org/

Novogradac & Company
http://www.novoco.com