National Housing & Rehabilitation Association
Provides in-depth information on various affordable housing issues including the Low-Income Housing Tax Credit (LIHTC), historic preservation, multifamily housing finance, HUD and FHA programs, and public housing redevelopment.
http://www.housingonline.com/

NCALL Research
Non-profit affordable housing technical assistance provider. Provides homeownership counseling services throughout the State of Delaware. Provides Community Housing Development Organization (CHDO), farmworker housing, and rural housing technical assistance to nonprofit housing organizations throughout the Delmarva Peninsula in Maryland, Delaware, and Virginia.
http://www.ncall.org

Canada Mortgage and Housing Corporation
CMHC is the site for housing and mortgage insurance information in Canada.
http://www.cmhc-schl.gc.ca/en/

National Council of State Housing Agencies (NCSHA)
The National Council of State Housing Agencies (NCSHA) is a national, nonprofit organization created by the nation's state housing finance agencies to assist them in increasing housing opportunities for lower income and underserved people through the financing, development, and preservation of affordable housing. State Housing Finance Agencies (HFAs) are state-chartered authorities established to help meet the affordable housing needs of their states' residents. At the center of HFA activity within the states and NCSHA's work in Washington are three federally authorized programs: the Mortgage Revenue Bond (MRB) program; the Low Income Housing Tax Credit program (Housing Credit); and the HOME Investment Partnerships Program (HOME).
http://www.ncsha.org/

AdCar Associates, Inc.
AdCar Associates is a team of housing management consultants. We specialize in multifamily housing that is insured, held or subsidized by the U.S. Department of Housing and Urban Development (HUD).
http://www.adcar.com

Co-operative Housing Federation of British Columbia (CHF BC)
Association of non-profit housing co-ops. Includes information about and for housing co-ops, member services, and co-op directory.
http://www.chf.bc.ca

Gagnier Hicks Associates
GHA aids you in developing and operating multifamily housing for the elderly and other special needs populations.
http://gagnier-hicks.com/

Department of Housing and Urban Development (HUD)
Oversees home ownership, low-income housing assistance, fair housing laws, homelessness, aid for distressed neighborhoods, and housing development programs. Site provides details of HUD offices and programs, as well as resources for citizens, communities, contractors, local agencies, and researchers.
http://www.hud.gov/

International Co-operative Housing
Lobbies, educates, researches and informs about co-operative housing as a solution to housing needs. Includes links to reports from the International Co-operative Housing Committee.
http://www.uwcc.wisc.edu/icic/orgs/ica/struc/sect/spec/orgs/housing/

National Association of Housing Cooperatives
The U.S. N.A.H.C. is a nonprofit national federation of housing cooperatives and mutual housing associations. Contains information on living in and starting housing co-ops, a listing of publications, and links and member information.
http://www.coophousing.org/