does anyone know a good site where I can find any info on the Oyo Empire?

Answer 1

This site gives a good overview of the history of the Oyo Empire.
http://www.ijebu.org/oyo/

This site gives explanations of missing gaps in its history such as the story of Oduduwa, how he came by the Empire, who he was and other histories pretaining to him.
http://www.edo-nation.net/sowunmi1.htm

This site tells many different things including their religious beliefs.
http://www.utexas.edu/conferences/africa/2004/database/fasanya.html

Here are two more that would been of benefit to you.
http://www.wsu.edu/~dee/CIVAFRCA/FOREST.HTM
http://concise.britannica.com/ebc/article-9374311/Oyo-empire

Good luck and hope that this helps.

Answer 2

Google thinks they know of some sites:

Answer 3

Try searching on google.