NEW YORK (AdAge.com) -- While they're only one part of the larger campaign launching HBO's "True Blood," viral promotions by New York's Campfire
agency for the vampire series are a real stand out. Among other things, a message written in ancient language symbols was mailed to prominent bloggers and science fiction geeks known to be interested in vampires. When a few with language degrees cracked the code, they found an address for a vampire website. It was all blood and deliciously engaging fiction from there on.