to start a raid press Alt R, this will open a 'Raid window'
You then invite people into your raid people you invite become 'group leaders' within the raid, they can then invite people into thier group.
this is usually directed by the 'Raid leader' because he can then generate the groups that he requires.
The 'Raid leader' also dictates who other than himself can Loot mobs killed by the raid and many other things that you will see when opening the raid window.
Good luck
Edited, Sat Feb 21 12:35:17 2004 by tarv