Search

Crowdsourced data collection

Platforms that allow a variety of people to contribute data to a common collection.

Apollo

The Apollo DemTool is a powerful system for compiling, managing, and analyzing citizen reports from an election monitoring mission.

Collideoscope

Tell us about your collisions and near-misses, so we can build the evidence base for improvements, together

cat-icon United Kingdom

CommonSpace

CommonSpace is a map-based data collection mobile application that makes it easier to record observations of human activities in open spaces — a method known as public life studies.

Crisis Commons

CrisisCommons seeks to advance and support the use of open data and volunteer technology communities to catalyze innovation in crisis management and global development. CrisisCommons is a global community of volunteers from technology, crisis response organizations, government agencies, and citizens that are working together to build and use technology tools to help respond to disasters…

Crowdsourced Facebook ad targeting campaign

Sie haben geholfen, Trump zum Präsidenten zu machen. Sie haben den Brexit befeuert. Jetzt spielen sie auch im deutschen Wahlkampf eine Rolle: sogenannte "Dark Ads". BuzzFeed News macht diese dunklen Anzeigen nun transparent.