CoStar Group, Inc.
- Provides building-specific information through a proprietary database of commercial transactions. Includes subscription information, sample reports, and corporate profile.
- http://www.costar.com/

Restaurants For Sale Online
- Directory of restaurants, bars, nightclubs and other food service businesses for sale. Includes company background and FAQs.
- http://www.restaurants-for-sale-online.com

Comag
- Search or find property for sale or lease in the US, UK, and Asia.
- http://www.go-commercial-property.co.uk/

CIMLS
- Provides online commercial properties for sale and for lease. Membership, listing and searching is free.
- http://www.cimls.com/

Commercial Real Estate Exchange
- Portal and multiple listing service; search available properties and view market trends.
- http://www.commrex.com/

LoopNet
- Commercial real estate marketplace with a database of properties for sale and lease around the globe.
- http://www.loopnet.com

ICI World Commercial Real Estate Network
- Offering listings for industrial, commercial and investment real estate.
- http://www.iciworld.net/