This article will explain how you can add the Google map module to your InstantSite
Scroll down to the Create your website section and click on the InstantSite icon.
Click on the Login button next to the relevant InstantSite package.
Click on the Edit link.
Click on the relevant page you want to add the Google maps module to.
Drag the Area map module to where you would like it on your page.
Click on the Service provider settings link.
Click on the Get a Google Maps API key for my site link and follow the online instructions.
Enter your Google API code and click on the OK button.