I started using PBWorks when its name was still PBwiki (which at that time means peanutbutter wiki - I forgot the story behind it). I still remember I was with Xlibris at that time -- so that must be like 3 or 4 years ago. Of course, compared to how it looks now, it was crude back then but it works.
Last year, I got back to it for my freelance writing stint -- this time its official name is PBWorks. I used to save the articles I created. So I can access my articles online easily -- wherever I am: home, work, coffee shops. What struck me most at that time is how they arrange their Help page -- it was organized and 'intuitive.' I actually tried to copy how they organized their help page for the User's manual of the application I worked on last time.
So now, on my new task, I reacquaint myself again with PBWorks. And, wow! It simply blows me away. Every thing is just nicely put -- from a tech dodo's point of view. It simply looks relax.