I need to a map software that enables me to have the World "Map" such that I can color some countries on the earth in one color and other countries in another color and so on with a legend to denote each color. For example, I want to color some countries with low income levels "red", other countries with middle income level "blue" and the rest of the countries "green". Please suggest some software, freeware, shareware, open source, or commercial. It must be very easy to work with. I do not need more than the world map and the ability to handle information with it. You will also do 3 maps in this manner urgent.