You probably landed on this page from an external link. The coworking map is unfortunately no longer supported!
The Coworking Berlin map and app launched in 2014 as a passion project to have an overview of the various coworking spaces in and around Berlin. There are many and keeping track can be complicated, but fortunately there has been tons of support from the community and spaces themselves (check out the Coworking Festival, who integrated the map in their website).
From a technical point the original map was running on a combination of PHP and Google Maps, users could add their own coworking places, update added places and automatically get old places scrapped (based on a downvote system). Later on as this became harder to manage the backend was migrated to Google Fusion Tables. Since Fusion Tables is shutting down at the end of 2019 the map is no longer supported.