Team Twiizer (for TP-Hack, HBC, BootMii),
Waninkoko (for cIOSes, WAD Manager, Wii DVD Dumper),
WiiGator (for Gamma 0.3),
WiiPower (for TBR, NeoGamma),
Hermes (for awesome cIOSes that work with USB instruments and FAT-USB loading),
Tantric (GX emulators, libogc),
Comex (bannerbomb),
oggzee...