Free for commercial use google-maps equivalent to do the following?

Question

I'm looking for a mapping API something which has similar functionality to Google-maps but which perhaps has something along the lines of the Apache / MIT license. I basically want to plot points on the map. Does such a thing exist? If so are there any guides to plotting points on this map API?

Answer 1

http://www.maptools.org/

Answer 2

OpenStreetMap (Their Wiki)