specific product location on Google Maps

Hi Guys,

I am trying to create a website that will display certain products, vis SQL based the selection from the menu.  So far this works fine.  What I am after, and really haven't found any good tutorials on it, is how to list them in a google  map.  I am not looking at just location a certain business around a persons location but rather a specific product that that business cars.  An example might be a person whats to see what store near him carries a specific type of banana, so when he click on the product banana it would show up on google maps with all the businesses that carry the specific banana.  I am pretty sure that this would be SQL driven and the name, addresses, city, etc of these businesses would have to be in a database.

Any help is appreciated.

Thanks