If you haven’t already opted in to the new Google Maps, you might want to now. Along with so many great new features and an updated UI, you can now easily embed a map with easy access to the HTML snippet.
Click on the gear icon on the bottom right and then go to “embed map.” Once the map is embedded, users can sign into the maps to see their own relevant content such as saved places— they can also save a place from your own embedded map so they can see it later on on their device. Usage limits are non-existent as well.
Source: Google Geo Developers