Testing if customer has mobile website
Quite often when we are looking at different businesses to promote mobile websites too lots of people have been asking how to test to see if that customer already has a mobile website.
By using an extension and Google Chrome browser you can do this very easily.

If people are using FireFox, this is a very addon http://chrispederick.com/work/user-agent-switcher/
You can even setup your own user agents.