From the Product History for the Expert Set at dndclassics.com

From the Product History for the Expert Set at dndclassics.com,
by RPG Historian Shannon Appelcline:
"The story of Basic D&D begins with J. Eric Holmes simplifying the original D&D rules (1974) as the first Dungeons & Dragons Basic Set (1977). After that, TSR didn't put any more work into the Basic D&D game, instead focusing on AD&D (1977-1979). Enter the "James Dallas Egbert III affair" (1979), where a college student disappeared and D&D somehow took the blame in the media. Ironically, this controversy caused sales of Holmes' Basic Set to soar and resulted in a new directive for the newly created Design Department at TSR: supplement Basic D&D (which only covered levels 1-3) with Expert Rules that would allow players to play "through at least 12th level of experience.""
http://www.dndclassics.com/product/110792/D%26D-Expert-Set-Rulebook-%28Basic%29

A little update on BLUEHOLME™ Compleat Rules:

A little update on BLUEHOLME™ Compleat Rules:
http://dreamscapedesign.net/2013/02/12/blueholme-compleat-in-progress/

From the Adventures & Shopping blog: a review of the Classic Dungeon Tiles PDF.

From the Adventures & Shopping blog: a review of the Classic Dungeon Tiles PDF. Is this the Art Braune that is a member of this community?
http://adventuresandshopping.blogspot.com/2013/02/classic-dungeon-tiles-pdfs-arthur.html

ZENOPUS ARCHIVES: Expert Set rulebook pdf notes

http://zenopusarchives.blogspot.com/2013/02/expert-set-rulebook-pdf-notes.html

From Ken Harrison's (member here) blog:

From Ken Harrison's (member here) blog:
http://therustybattleaxe.blogspot.com/2013/02/the-dungeon-2-comparing-gurps-and-d-on.html

ZENOPUS ARCHIVES: Expert Set brown dice

http://zenopusarchives.blogspot.com/2013/02/expert-set-brown-dice.html

Part of a post on the Ginger Gone Gaming blog:

Part of a post on the Ginger Gone Gaming blog:

"I’m working on a campaign called Magic Faraway Land and am throwing in everything goofy idea that pops into my mind. It’ll be run using Holmes D&D, be 1-3 level, Flailsnails compatible, and utterly insane. Basically it’s Pride and Prejudice meets D&D."
http://gingersnapsunflowers.blogspot.com/