OpenStreetMap is a project aimed squarely at creating and providing free geographic data such as street maps to anyone who wants them. It is a free editable map of the whole world. It is made by people like you.
Google Maps is a basic web mapping service application and technology provided by Google. It offers street maps, a route planner for traveling by foot, car, or public transport and an urban business locator for numerous countries around the world.
Google Earth lets you fly anywhere on Earth to view satellite imagery, maps, terrain, 3D buildings, from galaxies in outer space to the canyons of the ocean. You can explore rich geographical content, save your toured places, and share with others.
2GIS provides 3D-maps of 180+ cities, contacts of 1.5 million companies, car routing and public transport routes and and more! 2GIS is a complete and up-to-date directory of organizations with detailed cities’ maps.
Yandex.Maps gives you access to maps of over 1800 cities and towns right in your pocket. Find addresses and companies. Plan your journeys in a car or on public transport taking current traffic conditions into account.
Find your way in the World with Arcane Maps. Get navigation, traffic, and extended places info and even organize your favorite places into custom lists and share them with your friends. No logs with full privacy.
TomTom MyDrive is a route planner based on TomTom maps that allows to find the fastest or the most attractive route to your destination by vehicle of your choice with traffic info and integration with TomTom devices and mobile app.
GMap.NET is great and Powerful, Free, cross platform, open source .NET control. Enable use routing, geocoding, directions and maps from Google, Yahoo!, Bing, OpenStreetMap, ArcGIS, Pergo, SigPac, Yandex, Mapy.cz, Maps.lt, iKarte.Discontinued
No updates for years, CodePlex shut down after July 1st, 2021.