Sure people have been grabbing domains for years.  They are always on the prowl for a great brandable domain that is short and easy to remember.  Don’t worry there are really good ones still available and yes I am talking .com domains.  Here are two prime examples  CJZH.com and PYWX.com.  Cjzh is mentioned 28,400 times in Google and Pyxw is mentioned 11,600 times. 

These are hot names that people are already talking about.  I’ll even let you register them and not even charge you a finders fee for these great domains

ps these two domains already have some backlinks according to yahoo