The WWW is dead,2817,2476480,00.asp

Even though this article from PC Mag is a year old, it sounds pretty on the money: Web addresses for certain businesses are dead.  If you offer a web-based service, you should probably worry about the app before the website–if you even need a site.
However, I still believe in the Web address over having only social media sites for bands, artists, & restaurants or other more physical businesses.

The most important concept is to learn what your target audience would find appealing & build from there.