A new third revised edition of Eric Wagner's An Insider's Guide to Robert Anton Wilson will published on Dec. 11.
As I understand it, the second edition did not have changes in the text. The new third revised edition, however, is a substantial revision with many changes and with quite a bit of new material. More about this when we get closer to the publication date.
I have a paperback of the original first edition. I plan to buy a Kindle of the new edition, so that I'll have a searchable text.