
QuakeOne.com Thread | RMQ Blog | Inside3D Thread
Quake Remake Single Player Demo 2 is out; features a grappling hook with grapple points, pushable objects, altered physics and more. (Download Mirror: download). Read more in the thread. A few people are finding this a bit harder to get setup than probably it should be (I have an idea for later today).
Update:

I created a light open source Windows installer for Remake Quake. Click and go.
Download: Remake Quake EZ Installer - 112 MB
Needed: demos of completed game play of Remake Quake Single Player Demo 2. As an expression of thanks, the first 3 submissions receive a custom forum title (and if you are one of the 8 that already has one, you will get upgraded to "modify your own title at will").

QuakeOne.Com Thread | Quake Revitalization Site
Moon[Drunk] has announced a big update to the Quake Retexturing Project [the site appears to have a big update too]. Read more in the thread.