Forgotten Realms Campaign Setting (1e) - I'm not a big FR fan, but the early versions were undoubtedly the best. $9.99 and lots and 192 pages plus maps.
M2 Vengeance of Alphaks - He was sort of the villain in the backstory to the magical empire of Alphatia in Mystara. Well, he's back and wants vengeance in this Master level (28-36) module. 32 pages, $4.99
REF5 Lords of Darkness (1e) - Adventure anthology set in the Forgotten Realms involving Undead. $4.99 and 96 pages.
Villains of the Undercity - A new Maximum Mayhem Dungeon. These really sum up the early gonzo style of D&D that some try to evoke and fail. Not cheap though at $10 and 36 pages.
d30 Random Tavern Generator - If there is one thing that pisses me off more about the OSR than the single saving throw, it's the d30. PWYW.
Hobgoblin Lair - 2 pages map meant to represent a hobgoblin lair. $3.
Enhanced Friday Freebie Map - More of these from Paratime Design or $1
Stock Art Dungeons Map 1 - The Catacombs - While not as good as the above Paratime Design maps above, this has the benefit of having a commercial license, so you can use it in a product. And $2.99, it's cheap enough that your miodule you might just break even.
Stock Art Dungeons Map 2 -
Stock Art Dungeons Map 3 - The Fortress - As above, but a fort. $2.99
Stock Art Dungeons Map 4 - The Secret Grove - As above. Hopefully no one makes a module based on Nancy Friday's books, who was 50 Shades of Grey back in the 1980s. Only much grosser. $2.99