I've revised the Hyborian Age campaign booklet. A few of the races didn't have level caps (and should have), and I fixed a couple of typos and formatting inconsistencies. I also added an appendix with an excerpt from Howard's "The Hyborian Age" essay after discovering that it is indeed in the public domain, and placed a map of the Hyborian world at the end.
Finally, the PDF is now fully bookmarked for ease of navigation. It will still print as a digest-sized booklet if you select the "Booklet Printing" function in Acrobat Reader/Acrobat Pro.
You can download the current version here: http://www.grey-elf.com/dnd/