
CloudMade Makes Maps Differently CloudMade helps you make the most of map data. We source our maps from OpenStreetMap, the community mapping project which is making a free map of the world.
http://www.cloudmade.com

What is Geomajas? Geomajas is an Open source Web mapping software framework enabling 'real integrated GIS via the browser'. Geomajas includes: * Geometry and attribute editing with snapping support * Complex attribute and relation mapping (one-to-many, many-to-one), helping you implement business logic * Advanced querying capabilities (searching, filters, styles, ...)
http://www.geomajas.org

OpenAerialMap is an open collection of aerial photographs, collected into a single coherent view of the world. Read the tutorial to find out how to upload your own imagery, check out the wiki, or go straight to browsing the map.
http://openaerialmap.org