You can donate at https://donate.openstreetmap.org/ https://donate.openstreetmap.org/ - though money is not used for buying satellite imagery, but rather for se

You can donate at https://donate.openstreetmap.org/ https://donate.openstreetmap.org/ - though money is not used for buying satellite imagery, but rather for server upkeep, maintaining core software etc. You can also contribute directly - there is edit button on https://openstreetmap.org https://openstreetmap.org StreetComplete may be useful if you have and Android phone and you are not interested in learning how to contribute (registering for OSM account is the worst step). Vespucci (for Android), Go Map!! (for Apple devices), JOSM (Java standalone program) are full-scale editors that I also recommend.