The SlideWiki EU project started 2016 with seventeen partners from Europe and Brazil using the award-winning open-source SlideWiki platform from germany as a basis. All project goals aiming at creating a large scale accessible learning and teaching platform using educational technology, skill recognition and global collaboration.
"Airsage has taken it to the next level in the more recent past with GPS based anonymized data, but data with EXTENSIVE history. The Airsage product is zip code and smaller resolution and can provide months to years of location history of an anonymous cell phone id. " -- https://news.ycombinator.com/item?id=14803443