Hosting and domain costs until October 2024 have been generously sponsored by dumptruck_ds. Thank you!
Mapping links
From Quake Wiki
Func_Msgboard
Func_Msgboard is the main level design forum/news site for Quake.
Quaddicted
Quaddicted serves as both the major 'review' and archive of Quake levels. It also has an extensive archive of tools and files related to Quake and the modding community in general.
Quoth
Quoth is a major mod for Quake that includes a suite of new enemies, weapons, and entity functionality that are invaluable for modern Quake level designers.