A nice directory of worksafe SL destinations: SecondLife with a purpose, other than the seedy kind
I found this site has reviews of sims and events that are the kind that our group is interested in. They are a good place to visit if you encounter a little skepticism at your organization when you are trying to preach the joy and importance of SL.
They have a health and education category, but no nonprofit-specific one. Do you all think we could be their source for this category? I found this Charity Category and I wonder if there was some way that we could cross-pollinate our sites. Any ideas?