REIE Home Comm. Loop Net claims to be the largest commercial listing and leasing service on the Internet. It includes some of the largest commercial brokerages in the country.
Listings are easy to input.
Especially nice is the fact that individual agents can list their properties. It also includes leasing listings. Property First opened June 1999. It is a commercial listing and leasing site which covers the United States. It offers free listings and has tools to help Brokers and agents market their services.