Re: keywords map
I'll try to answer your question, but if my answer doesn't suffice, feel free to rephrase the question -
You can serve Ads on Google Maps by following these steps -
1. Create a Campaign with active Ads and Keywords
2. Enable Location Extensions (Extensions tab in AdWords)
3. Make sure you're opted in Google's Search Partners(under Campaign Settings)
If you're looking to research Keywords in a certain geographic area and find out how users in that area are searching, you can do this using Google's Keyword Planner tool.
Does that help?