lorax - 2:19 pm on Jun 27, 2012 (gmt 0) [edited by: lorax at 2:29 pm (utc) on Jun 27, 2012]
No links to personal sites please. All of the plugins I'm aware of are centered on roles - a group of people given permissions rather than a single individual. What I suggest you look into implementing is the WP Network option within WordPress - using sub-directories. I think it could work well for you. It would be much easier to control - even if you had to implement a plugin to help you control the specific rights they had.
Each org would have a mini-site of their own and they could edit it at will.
[edited by: lorax at 2:29 pm (utc) on Jun 27, 2012]