This is a Google map where you can add your rough location and see who else is near you. You can put your postcode in the search to zoom into your area, then click the add marker button and put that somewhere near you. You may not want to put it on your exact address. If you enter your website address in the info box for your marker, then people can use whatever contact details you have on there. If you’re not sure how to add yourself, see below.
How to add a marker