Fancy plone site design:
http://www.enfoldsystems.com/
http://www.pilotsystems.net/
How an university academe adopting and running a Plone?
http://www.eng.ox.ac.uk/Plone
A integrator’s rant:
Why I am leaving Plone?
http://pjgrizel.net/2009/07/why-i-am-leaving-plone/