Ike sent word about his Doom2 megawad Kill, which is still under construction. It features 27 levels, tuned-up monsters and new music. He's also looking for sprite / texture artists. Screenshots are available at the site.
Kristian Kaell has released an unused Nimrod level at the Unholy Software site. Designed for Doom Legacy, it requires jumping enabled.
Hyena has started an online radio station featuring Doom music. Yes, that's right. However, this link only works if he's actually online.
The rorDoom site has moved to this location. Here you can find general info, screenshots and a download link for the alpha version of this Boom-based 3D Doom port, featuring "sectors on top of sectors". Of course, it's mirrored at our source port section as well.