I just thought I'd post some resources I've gathered over time. I'm always looking for something that covers the 12th century or, even better, 12th century England, but I think all of these do cover a broader geographical area and time period.
Mostly Medieval:
--This has loads of stuff. The "Merkat Cross" has links to books, nonfiction and fiction, (and music CDs!) on Amazon. The "Exploring the Middle Ages" has some cool stuff too--but I wouldn't trust the costumes they link. (There's a reason it says "Medieval THEMED.")
http://www.mostly-medieval.com/Patterns of Time:
--This is technically a store of sorts, but it has period-accurate costumes, and pictures of them, so it might not be bad as a resource for the looks of things. (And yes, I've bought one of these...yet to get it done.)
http://www.patternsoftime.com/Gode Cookery:
--This one is mostly just cool. I want to do some of these recipes sometime. It's a bit of ancient, clunky site but it has real medieval/renaissance recipes translated into modern recipes.
http://www.godecookery.com/Great Courses:
--Really, I suggest this company for ANYTHING. All of the courses we've bought have been superb. I've personally listened to Daileader's High Middle Ages and it was very good--I'm currently doing Dorsey Armstrong's "Medieval World" and I quite like it as well. Unfortunately, this is *not* free. They do have 70% off sales almost constantly, however.
http://www.thegreatcourses.com/tgc/courses/courses.aspx?s=848&ps=918I also have a pile of books, but mainly I suggest
Names Through the Ages by Teresa Norman (for naming characters in *most* time periods and in selected geographical places) and
England Under the Norman and Angevin Kings (1075-1225) by Robert Bartlett, for the serious Anglo-Norman enthusiast like me (the book is huge).