• chess24
• Valentinskamp 18
• Hamburg

Hacker School

By R. David Cummins

The hacker school tries to inspire teenagers (13 up to 19) for coding and to discover an unknown talent and support by their evolvement.

• is a non profit company
• supported by ministry, attraktor and die medienschule
• all developers/teachers are doing this in their free time (or are exempted by their company)
• the number of registrations is below the expected number
• this won't be a one time thing, the idea and the story will be continued
• xing group available
• see also chaos macht schule, or tech-school, or humanist lab

Freifunk for developers

• is a non-commercial initiative for free wireless networks
• only free and open source software is used
• easy to join
• no german "Störerhaftung"
• be a part of build up a mesh network
• became independent from "the commercial internet" and join a city wide service network
• see the map to find a spot at your side
• vpn separates the freifunk network from your network
• join in hamburg
• check out the howto section

PHP security

By timo pegel

• great tool to lern about security in php applications
• owasp
• code