"This book discusses the recent developments in open source GIS in terms of addition of new geospatial tools, development platforms, software libraries, wide ranging applications etc. in context of desktop as well as web versions. The comprehensive details of efforts of developer communities...

A review of the basic theory of optimal open-source software contributions points to three key factors affecting supply: non-pecuniary benefits, future expected monetary returns, and open-source licence type. This paper argues that existing large-scale software developer surveys are inadequate...