How many of you really know how to use Google Search? If you're using basic Google, and not some of the neat options you're missing the boat, or in this case the search. Google has recently added a "local search option" which allows one to focus a keyword search on a given geographic area.
You might ask ... who cares, or why need I focus upon a given geographic area. Take a look at the two screenshots given below (click to view full sized). In my example, I've focused upon Silicon Valley, and you can see the quality of my result for the keyword "mems".
Realizing that not everyone might be interested in engineering design examples, consider for the moment if you were looking for cross-country ski trails. One could focus the search upon Duluth, Minnesota and find nice trails along the north shore of Lake Superior. You get the idea!
You may also wish to review Google's official announcement of this feature.
Step #1: Accessing the Google Local Search Options: (click to view full sized)
Step #2: Creating a Google Local Search: (click to view full sized)