GLFF (or Global Looking For Fellowship) is a unofficial channel that is used to contact people looking for a fellowship regardless of what zone they are in.

To join it, just type : /joinchannel glff in your chat window and you are in !

It will be added as a custom userchat. just look for the chat # in your chat window when you create it or when you log in the game (it will say something like "joined glff in userchat #).
If you never joined custom channel, you'll have it in userchat #1 by default.

To type in it, just type : /1 [your LFF message here without the bracket] (Replace the 1 by whatever userchat your glff is using).

Spread the Word !