Trion Worlds has announced that Rift will be free this weekend, for both new and returning players. Starting today and running through Monday, October 17, you can check out the five major content updates that have been released since the launch of the popular MMORPG. Over the past six months, Trion has introduced three epic raids, a PvP warfront, duo dungeon content, countless updates and improvements, and much more.

source: http://ve3d.ign.com/articles/news/62540/A-Rift-Free-Weekend