Google Map Embed
Youtube Embed
Vimeo Embed
All you need to do to embed something into a post or page is to post the URL to it into your content area. Make sure that the URL is on its own line and not hyperlinked (clickable when viewing the post). For Example:
Check out this cool video:
https://www.youtube.com/watch?v=kh29_SERH0Y
That was a cool video.