Reader vastcool has just informed us of his Lucasarts Adventurer blog over here where he's putting up scans of The Adventurer, the magazine which was included with North American releases of LucasArts games in the 1990s. So far he's posted issues 1, 2, 4, 7, 8, 10, and 12.
Source: Lucasarts Adventurer blog
EDIT: 9/28—Thanks a million! :-)
I archive.org'd LucasArts.com and at least they also have web-versioned copies of 9, 10, 11, 12, 14. None earlier, and no 13, and no more after 14(?). Fantastic track record. Around the time of Grim Fandango being noted, "The Adventurer" link changed to "Adventurer Archives" which took you to a link that may have been flash, or had some intro page that wasn't copied on archive.org.
Around Feb-May of 1999 they just dropped the Adventurer Archives off the site.
Nice thing about this one is that it wasn't newspaper size, so it's basically ready to upload.
Good times, good times. Thanks for passing this one on, and BIG ups to the original scan-ster.