Here's a quick method of finding possible buyers for your domain name,
1. Go to WHOIS.SC and find owners of variations of your domain name. If you own example.com, there's a chance the owners of example123.com, exam-ple.com or example.us might be interested.
2. Go to Google.com and search for the keywords contained in your domain. Make a list of all the paying advertisers that appear in the "Sponsored Links".
3. Go to Overture.com and search for the keywords contained in your domain. Make a list of all the paying advertisers. (Click "View Advertisers' Max Bids")
These three steps will usually produce a decent sized list of potential buyers for your name. From there you can contact the companies and see if there's any interest in aquiring your name.
DO NOT SPAM! Mass mailing all these companies with a single spam email is a bad idea! Any time you do this you should be contacting these companies indivudually by email, snail mail or phone. Figure out how these companies can benefit by owning your domain and approach them with this information. Other threads on NP contain advice about how to go about this.
Also keep this in mind when expecting responses from contacting potential buyers:
You might contact 30 companies and not receive any interest. Don't fret, move on to the next domain.
