This is a 9 minute tutorial on using MY MAPS in google. If you need to only learn how to embed into your blog, go to the 7:30 MARK To the end.
See on YOUTUBE: https://www.youtube.com/watch?v=inHLBej4RyM&feature=youtu.be
See on YOUTUBE: https://www.youtube.com/watch?v=inHLBej4RyM&feature=youtu.be