So much knowledge has been lost on particular faiths, mostly due to religious wars and time itself. Please be aware of this when researching faiths. Many personal beliefs are now lost inside the histories and wisdom. What is truely important is YOUR beliefs and spiritualism. There are handfuls of essentials for each faith, but the rest should normally be personalized by yourself.
The following links are directed to Wikipedia.com. This list in incomplete but a good start on your research.