To answer the questions - yes, I want case studies about all of those.  No, I don't want stories.  Perhaps I'm in the minority, but I did answer that poll and chose case studies thinking that there was a common definition and expectation - a summary of the business environment before a decision was made, options considered in making the decision, obstacles encountered in implementing the decision, and results (even preliminary) of the decision.  I've been shocked to see things labeled "case study" that are simply "here's an example of someone using tool X."  

I am always looking for case studies about how organizations use the social web to build community and raise money.  Details about lessons learned, alternatives considered, and the business case are as interesting as the final results. Any case studies are appreciated and helpful. I am especially interested in small nonprofits, but even examples about large corporations can give some helpful info.

Thanks,

Kevin