Quote Originally Posted by Thyranne View Post
Raid Finder is a matchmaking tool available in World of Warcraft. It's the easiest of the 4 difficulty modes available in a raid. Only a few bosses have a chance of wiping your group (the ones I can think right now are Durumu, Lei Shen, Elegon,...). It offers some crap loot (used to be a weaker version of normal mode loot).

For more info: http://wow.gamepedia.com/LFR
Essentially Dutyfinder.