Want to buy yourname.com, but see that it’s already spoken for? Often it’s obvious who owns it, but sometimes the name is "Parked courtesy of SomeWebHost."

If you want to know the owner, here’s a quick way of finding out:
Just go to who.is/[domainname].

For example, who.is/varbuzz.com. You’ll get a bunch of info, including the registrar (e.g., GoDaddy), when it was registered and expires, and — if you scroll down a bit — you’ll see something like this, which came from commonwealthonline.com:

Registrant:
   Commonwealth United Mortgage Corporation
   921 Pleasant Valley Avenue
   Mt. Laurel, New Jersey 08054
   United States

And that’s who owns it. Sometimes the name is hidden, in which case you’re SOL (and I don’t mean Standards of Learning). But often it’s visible, so you know whose likeness to get that voodoo doll made with.