Thanks for the info Guust!
I have something else. When I go to a category listing page using a category link from “Popular Categories” widget, the output includes everything regardless of proximity. I would like the category listings filtered based on location, nearest to the user. With search results, it works as I expect since you have the option to provide the location information. However, I could not figure out if the same is possible on the category listing page. So, when the user comes to the category listing page they should see a list filtered based on their location. If this is not possible, is there a filter widget or something that they can use to filter the category output, within the category listing page?
Thanks