So, out with the old (safari plugin source) and in with the new (red = did not add, green = added):
Apogee LTD: apogeeltd.com - added
CedSoft: prog.cedsoft.free.fr - labeled "Beta"
ChriB and Co: repo.itouchable.de - added
iUnlock: i.unlock.no - malform XML
jComic repository: penjuinlabs.com/ipod - 404 Not found
Limited Edition iPhone: limitededitioniphone.com/lei.xml - added
Ma3rpyr0's Source: mast3rpyr0.hopto.org/repo - Empty source with proper descriptor but no packages
Macro's Repo: marcogiorgini.com/iPhone/plist.xml - added, Yeti3D? O.o
Taiwanese: iphone4.tw/unlock - Added, & bug fixed!
HongKong: iphone.org.hk/repository.plist - Added

Currently tracking:
33 Sources, 1057 Packages.