We have been working with Plone (as our main content management system) for close to four years now.  In that time, we have come to love  Plone and the overall open source movement. 

The only problem we had with Plone is the fact that not enough people knew how great it was.  Despite some of the biggest companies, associations and government agencies using Plone, its popularity has always been overshadowed by other platforms that were not as good technically, but had very good marketing and branding efforts.

But I am pleased to share that our partners at Contextual Corp, along with Netsight Internet Solutions (UK) have writen and produced an excellent overview of Plone.  If you ever had doubts about Plone's heritage and its standing in the CMS market, this is a good reminder of how strong this platform is.

PLONE CMS OVERVIEW