I am interested in finding a web app which maintains a "project blog" kind of thing (for more than a single project).
I'd like this app to have the following capabilities:
- wiki like editing, new page adding, etc. (I really like Wikimedia's style of wiki).
- being able to maintain certain authorization on pages (i.e. not anyone can access any page)
- being able to send directly a URL to someone so they can look at the page and edit it, if they want (or possibly, if I send the URL with a permission to do that).
Wikimedia would be excellent for 1, and I would use it, but it doesn't allow to do 2 and 3 quite easily, I think. Maybe 2, but definitely not 3. Any ideas about something else?