Domain Name General Brokers

BuyDomains
Search for domain names by category or state and receive domain name alerts.
Domain Barn
Domain brokerage and an internet business incubator that provides multiple web services.
Domain People
Offers domain name registration, transfers, and management.
Domain Systems
Domains for sale, appraisals, hosting, and registration services.
Icetab
Offers services to buy and sell domain names.
On Domains
Business domain names for sale.