Sharing your map is very easy with Google Maps. When you have completed and saved your map, you have the option of collaborating with others and allowing them to make changes to your map. By selecting collaborate, you can send e-mails to individuals inviting them to view your map and make comments or changes as you choose to allow.
When you are finished with your map and ready to share it with others, you can select link and begin sharing your map with others. With Google Maps, you have the option of sharing a link that others will navigate to or an embed script that can be used to add the completed map to your website or blog.