Awesome. I'm glad y'all are posting - the map is starting to take shape.
One thing to note is that when you click on 'edit' - if you haven't yet located a site - you will be editing the name/title of the map (which keeps changing

). So, when you click 'edit', before typing, click on the blue place marker and locate your site (and edit that entry).
Or, if you save the map as one of 'my maps' you can type your location into google maps first, then click 'save to my maps' and select the sheldon map (whatever its name may be at that point

) and then edit that entry.
Just a tip.
Keep 'em coming