OpenStreetMap
OpenStreetMap ( OSM ) ndi polojekiti yogwirizana yopanga mapu okonzedwanso omasuka a dziko lapansi. M'malo mwa mapepala okhaokha, deta yomwe imapangidwa ndi polojekitiyi imatengedwa kuti ndiyo yaikulu yomwe imayambira. Zolengedwa ndi kukula kwa OSM zakhala zikulimbikitsidwa ndi zoletsa kugwiritsa ntchito kapena kupezeka kwa mapu kumudzi konse, komanso kubwera kwa zipangizo zamakono zotetezera satana . OSM imatengedwa ngati chitsanzo chodziwika cha kudzipereka kwadzidzidzi .
Cholengedwa ndi Steve Coast ku UK mu 2004, chinauziridwa ndi kupambana kwa Wikipedia ndi malo omwe ali ndi mapu enieni ku UK ndi kwina kulikonse. Kuyambira nthaŵi imeneyo, yakula kwa anthu oposa 2 miliyoni olemba ntchito, omwe angathe kusonkhanitsa deta pogwiritsa ntchito kufufuza, zipangizo za GPS , kujambula zam'lengalenga , ndi zina zowonjezera. Izi crowdsourced deta ndiye limapanga pansi Open Nawonso achichepere License . Malowa amathandizidwa ndi OpenStreetMap Foundation , bungwe lopanda phindu lolembetsedwa ku England ndi Wales.
Deta yochokera ku OSM imapezeka kuti igwiritsidwe ntchito pazinthu zonse, monga momwe amagwiritsira ntchito Facebook , Craigslist , OsmAnd , Geocaching , MapQuest Open, JMP mapulogalamu , ndi Ma Foursquare kuti agwirizane ndi Google Maps , ndi maudindo ena odabwitsa monga kusintha deta yosasinthika yomwe ilipo ndi GPS olandila. Dongosolo la OpenStreetMap lapindula poyerekeza ndi zomwe zilipo, ngakhale mu 2009 khalidwe lachidziwitso linasiyanasiyana padziko lonse lapansi.