When the name says it all...

The purpose behind what a website focuses on or sells can be difficult at times to discover by just looking at it, or it can be easy. An example of easy would be fatburner.net -- it's fairly clear the topic of the website is losing weight by burning fat. It's actually recommended by many marketing experts that you find a website url that describes what you do or incorporates the name of your company that utilizes as few letters as possible so people can easily remember where to find you.