Here is a list of web sites that are proudly powered by Cocoon (in chronological order):
http://www.zen.co.za http://www.randshow.co.za http://www.mtnartinst.com http://www.north-wood.co.uk http://www.eurofootball.com http://www.caida.org http://grapeape.codingapes.com http://www.xmls.com http://www.xmltimes.com http://www.nakapeida.com http://www.myerealtor.com http://politics.smallworld.com http://www.methodsystems.com http://www.intelinet.com.br http://www.linuxtv.org
If you don't find your site here, make sure you tell us. We want this list to grow bigger every day :-)