The GMs Day sale DriveThruRPG and RPGNow is ending soon.
We are in the last 24 (or 22 now) hours of the sale, so if there is something you really want and you want it cheaper then now is the time.
The GM's sale over at DriveThruRPG also extends over to it's sister site, DNDClassics.com.
For sale are the various Historical References for 2nd Ed AD&D, but good really for any version of the game.
DnDClassics.com and DriveThruRPG
Just click on the links or banner above to get going!