HWQ1 The Milenian Scepter - Pretty good basic adventure set in the Greek/Roman themed Milenian empire. $4.99, 64 pages
Kara-Tur The Eastern Realms - The boxed set for the setting for 1e's Oriental Adventures, possibly meant for Greyhawk, but ended up in the Forgotten Realms. 192 pages, $4.99
MC14 Fiend Folio - 2e coverage of the monsters from Fiend Folio, at least the ones not covered earlier. $4.99, 64 pages.
The Magic Encyclopedia Volume II - The second part of the listing of all the magic items in TSR D&D. $4.99 and probably only about 90 pages (it says 155, but that's because the page number starts at 74)
Maze of the Blue Medusa - The dungeon (not a megadungeon in my opinion, only about 300 rooms) from Zak S makes an appearance on DTRPG. 288 pages and $5, or $10 for the bookmarked version
It's a remarkable product and definitely designed to be played, but honestly, it's a really high brow product, meant for people who are into modern art and such.
Ten Buried Blades - An adventure for Godbound. $4.99 and 56 pages.
Enhanced Friday Freebie Map - $1
Nod 30 - While the possible exception of Michael Curtis, I think John Stater is the most prolific OSR author, somewhat unheralded at that. His 'zine content alone outstrips virtually anyone else. 50 pages, $3.99