... you have the reaction of "that's the most useful new site I've seen in months!" when you come across the Latin 1086 - 1733 For Beginners page.

I have no idea whether it's a good tutorial yet -- I just got the link from sca_today. My suspicion is that it is focused on a subset of the language (official documents), so it's only a start. But it's the first introductory course I've come across that is specifically for *period* texts, rather than classical ones. And given that most of the latin sources I really care about are 16th and 17th century, that's rather interesting...