Browsing through the web recently, I’ve found that The Unofficial PhysX Links & Info Page, oldest info website about PhysX technology (since 2005), was finally closed after several months of inactivity. Title page says:
This page will not be updated anymore.
For all things PhysX, go to physxinfo.com.
Back in early 2007 this website inspired me to start my own PhysX project, that evolved afterwards to PhysXInfo.com