I'm currently experimenting with using c5 to replace a wiki-based nonprofit intranet. Seems a lot of end users are put off by the wiki syntax and such, and conversely aren't going to launch a big ol' blogging dashboard every time they want to change or add something. I think they'll be more comfortable with c5's in-page editing, so I'm giving that a try.

http://www.jasonroberts.net [wordpress, not c5]