Jonathan, thanks for the reminder - the Pro/ENGINEER page morphed into the PTC Creo page back then! Here's the new link: https://www.facebook.com/creo.ptc/
The focus is the same - Tips & Tricks, updates from PTC, customer stories and more. Feel free to post questions or share your work.
Note that we also have a dedicated PTC University page on Facebook, where we share training-specific content - a lot of it is relevant for PTC Creo, too.