Find URLs by Type-In Traffic
This Web tool allows you to search for available domain names by entering a keyword or phrase which it will then use to look for similar or related terms. It then checks that domain’s availability, and then gives you a list of all available domains, related domains, as well as how often that term is searched for every month.
The aim is to get urls that will benefit from ‘type-in traffic’ For example, when someone types in ‘fastcars.com’ into the browser window instead of searching for it in a search engine.
Link
update -June 26: This fantastic service is unfortunately now only free for .net domains
