Please review:
https://www.geopieces.com

Explanation:

Geopieces is a social network based on geographical location using the google maps technology.
Geopieces allows you to publish content on the world map on the relevant geographical position.

Privat Territories. Virtual Property on the map

The whole map is split into squares 30m x 30m big, the so called Geopieces, which can be bought by the User.
Your Territory allows you to create special content on it that will be prominently displayed to any user crossing into your Geopiece and is always ranked on the top of the website´s newsfeed when users look up your region.

They Geopieces act like local billboards that can be sold and traded for a price set by the user.
A real world stock exchange will later allow you to earn real money and rent from your property.