Recently a group of hard-core Planetside players decided to start up their own "guerilla" marketing campaign after they felt that SOE was not doing enough advertising for their favorite MMORPG/MMOFPS game. They created a nice movie highlighting the game and helped potential players obtain and install the free 7 day trial using a downloadable installer. It is rumored that this player driver campaign has led to thousands of new players in the game and made a noticeable difference.
Nice work guys!