PBS
Pbs: Virtual Hajj
An interactive tour of the Hajj which is one of the "Five Pillars of Faith". It also includes video clips taken from the PBS film "Muhammad: Legacy of a Prophet". Requires the Real Player plug-in.
Khan Academy
Khan Academy: Introduction to Islam
This short introduction to Islam covers the origins and the life of Muhammad the Prophet, the Qur'an, and the four "rightly-guided" Caliphs.