Ohai have timed the announcement of their new vampire MMO just right. City of Eternals is a browser-based MMO set in the world of modern vampires. It is completely free-to-play and is currently in its private alpha testing stage. According to the developer, "You can choose your Vampire look and fighting style, explore a massive city with dozens of story quests, combat instances, and standalone missions. You will learn to harvest valuables and craft useful items, customize your own home, and choose your path to becoming the ultimate Vampire."
If that genre appeals to you, and you'd be interested in alpha testing the game, head on over to their invite page where they have 100 invites reserved for the Massively readers. Each person who gets into this alpha will receive 100 "ohais", which are their own form of virtual currency in the game that will cost real money once the game launches.