This blog covers a wide range of free tools for handling geographic data, including GIS, GPS, Google Earth and Maps, neogeography, free data resources, and whatever else. There’s no sufficient and absolute alternate for a good commercial GIS program like those from ESRI or MapInfo, especially in the hands of a well-trained user.
But COTS GIS software can be expensive and clumsy, and requires someone with extensive and expensive training to use it to its full advantage. In this site you can learn these tools in easy way with no cost.
