Archive of pre-compiled gnu and other utilities for Solaris on Sparc and Intel. Particularly useful for the pre-compiled gcc if you don't happen to have a Workshop licence.
A huge list of links relating to X, X apps, motif etc.
Graphics, Web, X11 programs and utilities. 3D tools, themes.
Lots of applications and information for all flavours of unix.
Archives of the *.sources.* newsgroups.