1. Go to the Page on your Google Site you want to Insert a Google Map to
2. Select Insert
3. Choose Map
   1. Map - Type the Name, Address, or Drop a Placemark on the Map that you would like the Map Centered to
   2. My Maps - Let's you select a Collection of Map Marker Points from Saved Maps made in Google My Maps
4. Resize the Map how you want it to appear on the Page
5. Click Publish

Watch Video on the Right to see how this was done on this page.