I've worked with a number of educators on some really cool collaborative Google Maps over the years. I've been holding on to the classic "My Maps" in Google Maps because the new Google Maps Engine Lite didn't allow for embedding video - which is such a powerful component. Well, now you can embed video in Maps Engine Lite. Couple that power with the ability to import data (functionality My Maps never had) and it is time make the move to the new Maps Engine Lite for good.
