TrouSerS - An open-source software stack. Provides FAQ and documentation. - http://trousers.sourceforge.net/
Wikipedia - Provides a definition, history overview, industry structure, and practical examples. - http://en.wikipedia.org/wiki/Trusted_Computing
Trusted Computing Platform Aliance - An industry focused on building levels of trust in the computing platform. Contains an overview and documentation in PDF format. - http://www.intel.com/cd/ids/developer/asmo-na/eng/20252.htm
EFF: "Trusted Computing: Promise and Risk" - Article by Seth Schoen covering pros and cons of hardware-based security options. - http://www.eff.org/Infrastructure/trusted_computing/20031001_tc.php
Trusted Computing FAQ - An FAQ by Ross Anderson covering the what, where, who, why, and how. - http://www.cl.cam.ac.uk/~rja14/tcpa-faq.html