I want to put a Google Maps map on our website.
You can add a custom My Map to websites with an embedded
Can I insert the map created and saved with My Maps as a layer in my JS API map?
You can use GGeoXml to add My Maps content to your API map.
In your My Map there’s a “View in Google Earth” link, use the URL of that link as your GGeoXml URL.
The link generates an indirect “network link” reference to the data, so the map on your page will reflect the latest changes made to the My Map.
The downside is that there’s a limit to how many markers you can place on one page of a My Map, and the “View in Google Earth” link only returns data for the current My Maps page.
Another strategy is to use GeometryControls in your own API map.
That involves a lot more coding effort on your side. It gives the same look and feel to your co-workers, so they still need no programming skills. The advantage is that it bypasses the My Maps limit to the number of markers that can be displayed at once.
Apparently you can embed the My Map you created in your website by using the Link To This Page functionality as described here.