Since this is a hot topic here is some history.
This is a list of breakaway clans formed by former WG members over the past 16 years. Many of the names are actually breakaways from the breakaways.
The Synergy, Sleeping Dragons, Death Jesters, The Crusade, Raining Chaos, Malice, Stoned Dragons, KnockOut, Omega, The Revolution, Sunflower Mafia, Neverending Torment, Assassins of Shadow, The Blade Keepers, Radiant, Colossus, Oak Island Pirates, 7th Circle, Nostrum Olympus
Recognise the names? Thought not.
Thanks to @Vio for the info.