I had few requests to install Pritlog and they did not want to mess with registering websites and hosting. Initially, I started installing Pritlog into separate directories for each of them. But later, it just struck me and I made 3 lines of code change in Pritlog and it became Pritlog MU (Multi blog, Multi user).
Now its just one installation of Pritlog and it can run multiple blogs and each blog can have its set of users. Here are some example sites:
http://mathew.pritlog.com/
http://blakley.pritlog.com/
http://tania.pritlog.com/
I also added cleaner urls recommended by John into this.