Do you know about #OSM Diaries? A YouTube #video channel from long time #OpenStreetMap contributor Gregory Marler, about what they're mapping now. It's a great way to see the nuts and bolts of OSM mapping
Between "OpenStreetMap US" & "State Of The Map" there are 450 videos on YouTube. "Humanitarian openstreetmap team" has a bunch more and a 25 video playlist called "Learn To Map". I know I've seen more sources but I can't recall the channel's name.
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