Like many THATCampers, I’m delighted to see Participad running on THATCamp.org (yay Boone & Amanda and everyone who made this happen!) Now we can create collaboratively-authored documents inside WordPress without Google Docs (or our friends at the National Security Agency). If you don’t know what I’m talking about, check it out at http://chnm2013.thatcamp.org/notepads/
But Participad is a bit of a challenge to install. See wordpress.org/plugins/participad/ and http://participad.org/faqs/ I did not succeed in getting it running on my own self-hosted WordPress.org site a year ago, and would like to collaborate with others who are trying to do the same.