Wiki if you don't know what Comiket is.
Pretty much a clone of the C82 thread I made some months ago.
Nyu-Media's "Big List of Comiket 83 Game Circles" which has, where available, circle name, table location, and what they'll have available.
Shmup specific list
Here is the Operation Jaguar post about Touhou games.
46m EdelweissNal video featuring a bunch of game trailers.
26m version which has only original works (no touhou games).
Here's an English list of the games in the full version of Edelweiss's compilation with links to start times in the video & links to the developer homepages.
NEO AQUARIUM2: ACE OF SEAFOOD
「NINE TAIL（仮）Trial Ver.C83」
Black Lotus (pretty poverty looking 2DFG)