Thread-Safety According to Intel

Advanced:
http://www3.intel.com/cd/ids/developer/asmo-na/eng/327695.htm

Beginner:
http://www3.intel.com/cd/ids/developer/asmo-na/eng/327681.htm

Update 2007.01.04:
http://www3.intel.com/cd/ids/developer/asmo-na/eng/219575.htm