Community Sources:
Rip-Dev: i.ripdev.com/
BigBoss: apptapp.thebigboss.org/repofiles/installer4/
iSpazio: repo.neolinus.org/ispazio
Ste: repo.smxy.org/installer4
ModMyiFone: i.modmyi.com/

Other Sources:
A27 Dev: a27dev.com/installer/repo
MCI II: m2.iphoneall.org
HHVN: iphone.handheld.com.vn/installer
HackMyiPhone: hackmyiphone.info/installer
Ipodtouchdude: ipodtouchdude.net84.net/
Hiphonerepo: hiphonerepo.com/repo
gPDA: gpda.ru/r
iClarified: installer.iClarified.com (make sure to include capital “C”)
iFon.no: installer.ifon.no
Hackintosh: hackint0sh.org/repo (has had many bugs in the past)
Navco: navco786.com/repo
The App Place: applace.co.cc/repo/