Map hackers community
Do you know any map power-users / hackers community? I'm looking for a group of people interested in exchanging non-standard or notpublishable/private maps, map sources, files with POIs. Especially for Czech Republic. I have some of this stuff. I'm specializing in mapproxy tile translation and using Scrapy to rip POIs, and so on, but don't know anybody to share/exchange this with.