Most websites use normal TLDs like .com, .co.uk, or .org.
Legitimate. Normal. Boring. Some websites, like PJs.Cat (launch and patent pending) make use of the noble art of the TLD hack. Google for example owns Goo.gl (with .gl being the TLD for Greenland) and Youtu.be. Perhaps the most famous examples of this include del.icio.us and bit.ly.
You can even have boo.bs! The .cat TLD is under utilised, and the only site I have ever heard of that uses it is nyan.cat.
The Internet is full of cyber squatters, sitting on all the best .com websites, so using a good TLD hack is a great way to get a catchy, interesting, short and unique URL for your website.
If you want to make your own try tldhack.com, though it is not allways 100% accurate, as I found when I tried to register c.at and found there is a 3 character minimum for Austria’s .at domain.
So how did I feel when I finally registered PJs.Cat?