LOOPNET – Commercial Real Estate Listings and Links
CATYLIST – Commercial Real Estate Listings and Links
COMMREX – Commercial Real Estate Listings and Links
COMMERCIALSOURCE – Commercial Real Estate Listings and Links
REALTOR COMMERCIAL – Commercial Real Estate Listings and Links on REALTOR.com
CITYFEET – Commercial Real Estate Listings and Links
CCIM – Commercial Investment Real Estate Institute
SIOR – Society of Industrial and Office Realtors
NAREIT – National Associate of Real Estate Investment Trusts