This is a customized domain checker tool that helps me to find available domains.
All you need to do is type in a name without the domain extension and it will tell you what domains are available for the words you type in. I only use .COM, .NET, .ORG, .INFO, .BIZ, .EU, .US and .CO.UK domain extensions. I try to stick to a .COM but when that is not available and I find its a "Domain for Sale" page, the .NET as the competition from the main .COM is zero. The other domain extensions are used to protect the .COM when available.