Hardware

Black Hardware Information
Various topics relating to NeXT.
http://www.channelu.com/NeXT/Black/index.html

Black Hole, Inc.
Reseller of NeXT hardware and NeXTSTEP and OpenSTEP software, and Intel-based systems designed for OpenSTEP.
http://www.blackholeinc.com/

Heller's NeXT pages
A useful collection of information for working with and around NeXT boxes. Includes many FAQs, schematics and some interesting power supply fixes.
http://www.lrz-muenchen.de/~heller/NeXT/NeXT.html

NetBSD/next68k
NetBSD port to NeXT hardware and project page. Works on all 68040 non-ADB models.
http://netbsd.org/Ports/next68k/

NeXT Hardware E-Group
NeXT hardware and OS problems and solutions. Low traffic.
http://groups.yahoo.com/group/NeXTUSERS/