R. Michael Johnson on ILLUMINATUS!
R. Michael Johnson has a typically erudite article on ILLUMINATUS! and Robert Anton Wilson's "Guerilla Ontology" at Suite 101. It's a short article written for general readers, but you're likely to learn something, anyway. (I didn't know that Edward Abbott's Flatland influenced the structure of ILLUMINATUS!) Don't forget to do the social media thing (e.g., "liking" it on Facebook) so that the piece can find a few more readers.
Michael also has a piece on Ezra Pound in case you need to brush up on the key RAW influence.