The recent expansion of the Google Maps Onebox on Google.com makes local search optimization much more important than it was before this new display was implemented widely on Google.com.

Now, whether you have a web site or not, a business that Google ranks highly in Google Maps can get dramatic exposure thanks to last month’s change. How dramatic? Well, according to Bill Tancer’s Hitwise data, Google.com gets about 100x more traffic than Google Maps. So, yeah, this can be huge for some small businesses.

The inevitable question, then - and the one several of us have been discussing - is what makes the Google Maps algorithm different from Google.com? Google Maps has a unique set of data to draw from. The following article lists some of the possible factors that might make up the Google Maps algorithm.

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