Maps can be made beautiful on the web, here are the tools you'll need to get started.
OpenStreetMap is a map of the world, created by people like you and free to use under an open license.
OpenLayers: Free Maps for the Web
Snazzy Maps is a repository of different color schemes for Google Maps aimed towards web designers and develop
Create beautiful Google maps, easily.
Mapbox is an open source mapping platform for developers and designers at enterprise scale.