2009 Download Google License 
Zen and the Art of Nonprofit Technology
SEPTEMBER 24, 2008
It would not be as cost-effective (and thus, not produce as much profit) if these SaaS developers had to pay license fees for the software they use (besides the fact that these are the most stable and robust platforms to build upon.) It’s my understanding that none of the major non-profit SaaS players use open source tools.
Zen and the Art of Nonprofit Technology
APRIL 7, 2007
It’s peer reviewed (good), but it’s got a rather restrictive license, and the content is not freely available. The licenses are as follows: Personal License: If you have purchased a copy/subscription to the Journal with a personal license, this means that it is for your personal use.
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