Pirates of Auir
Brood War clan with a members list, clan SCMs and a black list.
Player Killer Kings [PKK]
StarCraft clan with online sign-up.
Prawn Wranglers
A clan consisting of many advance players of Starcraft and Brood Wars.
Progressive Killers
An elite clan. Has a memberlist, and joining information.
Pros To Experts HQ
Provides a member list, tournament information, and sign-ups.