A list of articles, blog posts, videos, books and courses to help get you what bitcoin and blockchain are
Strava Metro. Using data from people rides to improve infrastructures for bicyclists and pedestrians
Design Principles to Generate a Civic Tech Movement: define common problems, tools and network infraestructure
OpenStreetView, free street view service by OpenStreetMap
OSV is a web site, openstreetview.org, free and open source mobile apps for Android and iOS, a specialized Map Editor, a plugin for JOSM, and of course a back end server. Support for iD is also planned.