The place where we can chat about Ars Magica subjects--though if it's a big enough comment or question you can always open it's own topic. This Table Talk is generally lighter, briefer discussions of metagame and other game issues.
Poring through the library over at the Mystikae Eikona wiki http://mystikae.wetpaint.com/page/The+Library I find what may be may favorite book title in all the Ars Magica literature I have read over the years:
Tractatus: “Bonisagean Effulgence in Greek Mysticism”
Granted, I came up with it myself, but it's still a great title! Sounds like an article in St. Vladimir's Seminary Quarterly, someone's ordination thesis... 8)