Hello Lordalbert,
There are several websites that are designed to assist people buy and sell domain names.
If you're in the UK the most popular site for this is called www.domainexchange.co.uk. The site allows you to post the domain name you wish to sell and other users can bid for it. This is a great site because it's free, unlike many other sites of this nature.
The process goes like this:
- Post you domain name on the website
- Like any auction, prospective buyers will make offers
- You select the bid you wish to accept
- Send the transfer papers to www.domainexchange.co.uk
- The buyers sends the cheque to www.domainexchange.co.uk
- You authorise the transfer of domain name after funds have cleared
- The buyer confirms he/she has received the transfer of name, and you're done!
However, if you live outside the UK there are many .com addresses that will provide this service. One of the most popular is www.websitenames.com.