Also powered by Greenpeace
This site in the UK (and apparently a few others) runs on the GCMS or Greenpeace Content Management System, which was developed on the OpenACS platform and delivers most of our global webpresence
Like www.greenpeace.org
Nice to see these Open Source things getting used. I have high hopes that Rhubarb will get picked up and used elsewhere as well. Since it's small, compact, easy to install, does a simple job well and so on.