Does as it says in the title, and assigns a random-looking URL you can share with other collaborators. No need to register for the basic and free version.
Dougbelshaw (who else) linked to this and it looks interesting. Still looking to replace what I was doing with etherpad, this at least allows online collaboration and mark up using highlighting, scorethrough, add text and post-it notes. I don’t know what happens if several try to edit simultaneously so will have to try that out.Certainly in the version I have seen so far there is no sign of a timeline function to track back, but nevertheless it is a neat little package. I wondered if it might be useful for my Year 11 to collaborate when annotating poems from the Anthology and so on? It seems to work with Word, Powerpoint and PDFs.