As the temperature drops, many of us turn to fly tying to restock our boxes and hold us over until warmer weather, bug hatches and generally more active fish. Here are handful of great video resources for some inspiration:
Fly Fishing the Ozarks
Kelly Galloup's The Slide Inn
Fly Fish Food
While there are probably hundreds more great resources, these are all very well produced, cover lots of techniques and have enough info to keep anyone busy for several Winters.