Indeed. Google Docs suffers a lot from discoverability and, while you can collaboratively edit on it, it feels too much like a locked down blob of content and s

Indeed. Google Docs suffers a lot from discoverability and, while you can collaboratively edit on it, it feels too much like a locked down blob of content and so suffers from a lot of the same problems that Word suffers from (in my experience with it at least): it's hard to know when it's changed; when someone updates it, you get an email; when someone writes something, they have to "share" it with with you before you know it exists; WYSIWYG is a terrible way of editing content. I'm not sure how many of these problems this solves, but Wikis in general solve many of them.