Christian Mysticism

• Christian Mysticism Site: links, info on various traditions and individuals, and quotations
• Forms of Christian Mysticism:  Encyclopedia Brittanica article with a helpful overview
• Who's Who in the History of Mysticism:  A very helpful chronological list of major people and movements reflecting the high points of mystical writing. 
• Christian Spirituality Bookstore:  takes you to an Amazon.com sort of works in the mystic/spirituality tradition

Great Works of the Mystics

• The Cloud of Unknowing: full text online
• Meister Eckhart

Hildegard von Bingen

• Hildegard von Bingen page: lots of links to others sites from a von Bingen work group
• Life and Works of Hildegard von Bingen
• The Music and Art of Hildegard of Bingen: site listing links to her musical and artistic works

Women Writers

• Women Writers of the Middle Ages: not all of them mystics; lots of good links