Teheuti
There's a new website devoted to Tarot history that's still in development but looks like it will be pretty good - based on the articles now up. I have trouble reading the script font, though. If you, too, have trouble with the font, and would like to read more, please let the site creator, Joep van Loon, know.
http://tarotwheel.net/
http://tarotwheel.net/