There is an issue with trying to embed a Google Map in a WordPress Page or Post: it disappears unless you do it a certain way. In this tutorial I demonstrate a workaround.
One correction to the video: if you only want a link to a Google Map, instead of an embedded Google Map, you’ll want to grab the “Paste link in email or IM” code” instead of the “Paste HTML to embed in website” code from the Link box on the Google Maps page. That way your link won’t be wrapped in <small> tags, which makes your font tiny.