A few recent registrations show more businesses insuring that their business idea is reserved for future use:

And a website as a tool for a lawsuit:
 
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Check to see if your name is available as a Web Address domain name. (click here to check)

Many are taken already, but we have a special Name Spinner tool to help you come up with variations of the name, like BordenWeb.com (borden.com not available), or BrianShea.net (brianshea.com not available).

When you find a name that's available, Grab it! Don't wait too long and let someone else take it from you. Even if you're not ready to use it now, you'll want to make sure you 'own' it now.