Community Tip - You can subscribe to a forum, label or individual post and receive email notifications when someone posts a new topic or reply. Learn more! X
Link (requires login):
http://support.ptc.com/cs/help/windchill_hc/wc110_hc/
Even if you're on an earlier release, you might find the "New and Changed for this Release" topics interesting:
PTC Windchill Workgroup Manager
A few notes about using the help center (for those unfamiliar):