12:10Demo: how to create challenges in MapRoulette – Jake LowOpenStreetMap US160 viewsView & Download
17:00How to contribute to the damaged building mapping tasks on MaprouletteCan Unen390 viewsView & Download
14:27Using MapRoulette to Strengthen Communities – Martijn van ExelOpenStreetMap US130 viewsView & Download
25:10The Curious Mapper -- MapRoulette and Overpass ChallengesMartijn van Exel212 viewsView & Download
56:32Learn to create your own challenges in MapRoulette using OverpassState of the Map326 viewsView & Download
