WWeb mapping
WA9.com
WBaidu Maps
WBing Maps
WSteve Coast
WGADM
WGeaBios
WGéoportail
WGoogle Earth
WGoogle Maps
WHere Technologies
WHere WeGo
WHKmap.live
WMap24
WMapillary
WMapQuest
WMultimap.com
WMy.com
WOpen Source Routing Machine
WOpenLayers
WOpenSeaMap
WTencent Maps
WTiled web map
WWeb Mercator projection
WWikiloc
WWorld Intermediary Liability Map