In early 2007 , it added WYSIWYG editing , and in 2008 , limited HTML source editing .
PBworks is hosted on an all - Linux cluster and uses its own proprietary software .
In early 2007 , PBworks added WYSIWYG editing , and in 2008 , limited HTML source editing .
PBworks is hosted on an all - Linux cluster and uses its own proprietary software .