Newsagents can ensure their business is found via a Google search when they list the business through Google Places. It’s easy to setup, easy to maintain and free. If you appropriately describe the business and the products and services it offers, people searching for these in your area on a computer, a phone or some other device will see your business listed.
I can’t imagine why any newsagent would not create a Google Places entry. yes, as I have written here before, there are other free listings you should use but Google Places is the first and most important currently.