Wikimapia
Sponsorship
About the business model and the goals of the founders is not yet known accurate, at least over switched in Google Adsense advertising revenue generated by the service.
The recorded data are available since 2012 under the free license CC -BY -SA.
History
In the original implementation, there were no registered user and not an administrative hierarchy. Anyone able to edit anonymously, and there were no mechanisms to monitor problematic users or discipline.
Since 8 October 2006, a such a registration system has been introduced. Users who are registered more than three days can also perform administrative tasks such as changing the position and size of objects, deleting and protecting. For adding, checking and correcting entries points are awarded. Depending on the score, there are other rights that may be deprived of privileged members, without debate, however.
Growth
The number of entries is at the bottom right of the page referred to as " markers ".