OpenStreetMap is an open source mapping platform which provides a solid alternative to similar services provided by Google Maps and others.
The company has just launched their brand new map editor named iD which should make it extremely easy for their contributors to submit updates and corrections.
OpenStreetMap spoke about this new editor created from scratch by MapBox:
Starting today 1 million community mappers gain access to this new editor. It radically flattens the learning curve for existing users and for the two thousand new ones OpenStreetMap adds every day. Investing in core infrastructure like this is a game changer for OpenStreetMap and legacy proprietary data companies won’t be able to keep up with the combination of top notch editing experience and openly licensed database. In short, we will get more people adding more data, faster.