Using a Search Engine like www.LiveRoots.com can serve as a "one-stop shop" for busy genealogists, but only if the "one-stop shop" has access to a large variety of resources. My judgment is that LiveRoots reached the critical mass of accessed databases some time ago.
In my opinion, it has become a "must-use" site for persons seeking surname and locality information. I thought that I would demonstrate how I use the site.
Here is the home page screen:
There are links on the home page for Search, Discover, and Learn More. The Learn More link provides the Getting Started page with useful information about how to use the site: