Saint Catherine Tended by Angels - Miniature from a fifteenth-century French book of hours. - http://www.getty.edu/art/gettyguide/artObjectDetails?artobj=110505
For All the Saints: Catherine of Alexandria - Illustrated hagiographical essay on St. Catherine, also known as Aecatherina. - http://www.saintpatrickdc.org/ss/1125.htm#cath
Catherine, Saint - Brief entry on Catherine of Alexandria in the Columbia Encyclopedia. Mentions that she was dropped from the Roman calendar in 1969. - http://www.bartleby.com/65/ca/CathrinSt.html
Catholic Encyclopedia: St. Catherine of Alexandria - Article on the virgin and martyr. In the Middle Ages, one of the most popular saints. Although her alleged "acts" are untrustworthy in the extreme, there is no reason to doubt her existence. - http://www.newadvent.org/cathen/03445a.htm
Catherine of Alexandria, Martyr - Essay relates her story. With prayer in traditional and contemporary language. - http://elvis.rowan.edu/~kilroy/JEK/11/25.html