Deborah Elizabeth Finn has a neat idea.
...today I had the notion that a blog is a kind of bully pulpit, and that it would be fun and possibly even edifying for nonprofit bloggers engage in a bully pulpit exchange. In other words, we should get a group of folks who work for or with mission-based organizations, throw their names in a hat, and randomly assign each one to be a guest blogger for a day on somebody else's nonprofit blog.
This sounds like fun to me, and also a great way to see how somebody else looks at things. Check here for more on how you can get involved!