Just a short one today, but an addon that I know will please a small number of very passionate folks out there. It's easy to see what recipes you know: just look at your tradeskill window. But what if you want to see a list of recipes you don't know? Ackis Recipe List. Completists rejoice.
This mod is dedicated to listing all recipes in your tradeskills that you have not yet learned. But it doesn't stop there. It also tells you where to find them, even putting waypoints on your world map and minimap for vendors if you want it to. ARL also supports sophisticated filtering of recipes, so if I want to see all the Death Knight glyphs of skill level less than 400 that drop from mobs (although I don't think there are any), I can do that.
The interface is also pretty nice, given the amount of complexity it contains. There's a button to scan your tradeskills on your tradeskill window, which also allows access to the ARL frame once you've scanned. /arl will bring up more, including in-game documentation, which I especially appreciate - I haven't seen that in many mods before.
Overall, this mod does a great job at what it sets out to do. Highly recommended if you want to see what recipes you don't have. Thanks, Ackis!