Here you find some source packages, which I usually use. For some packages here is the only place to find it. For some package you find patchsets and Debian packages.
avidemux
capi4hylafax
dvdauthor
dvdwizard
fax4cups
fox1.6
fcpci-driver
fcusb2-driver
ghostscript
hylafax-plus
isdnutils
libdvdcss
lilo
linux (3.x)
linux-tools (3.x)
mISDNuser
motif
nfs-utils
plan
qlcplus
squidguard
subtitleripper
transcode
vfu