Originally Posted by A_Lee

I was confused also but then noticed the forum structure on FlyerTalk...
FlyerTalk Forums > Miles&Points > Global Airline Alliances > Star Alliance

The three main "Global Airline Alliances" are Star Alliance, One World and Sky Team. I'd suggest googling those names to find the appropriate websites for each alliance which should list the airlines which are members of them. The three alliances are in no way connected. There is no one global airline alliance.