The NonProfit Times has announced their Power and Influence Top 50 for 2006. I recommend you read their article at http://www.nptimes.com/Aug06/sr1.html to discover some of the most influencial people (and otheir respective organizations) in the nonprofit sector. If you are interested in the changes to this Top 50 list from previous years, go to http://foundationcenter.org/pnd/news/story.jhtml?id=153100009 for a great analysis in the Philanthropy News Digest.