A few Criterion Laserdiscs I have added to my collection in the last few months.
Yojimbo (single disk)
The Hidden Fortress (5 side / 3 disk)
Lawrence of Arabia (8 side / 4 disc)
Casablanca (2 disks)
Citizen Kane (6 side / 3 disk)
I've been uploading all of the laserdisc commentaries I've collected or ripped. You can find them on a site that is named after a body part that rhymes with the band Ween.
However, there are still many more left, including Citizen Kane (2 different laserdiscs, one Criterion, one not, were never ported to DVD), Casablanca, Carrie, Some Like it Hot, High Noon, Cat People, etc. If anyone has these discs, please either send me a PM and we'll find a place to upload it or post more information in this thread.
Here's a full list of Criterion laserdisc commentary tracks that I haven't seen online anywhere:
The Adventures of Robin Hood
Here Comes Mr. Jordan
It's a Wonderful Life
A Night at the Opera
The Player (but only side 3 is unavailable, I have side 1 and 2)
Sansho the Baliff
Singin' in the Rain
Some Like it Hot
The Wizard of Oz
There are plenty of other tracks from non-Criterion disc, and you find the whole list here. I do have some of these tracks and have uploaded them accordingly, but only a handful. It would probably be more appropriate in another thread, though.