This time, it isn’t Warner Bros. doing its own viral marketing. Taking a card from “The Dark Knight,” Empire Online has launched its own “he is coming” campaign to pump the film and spike its own traffic.

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Credit goes to the operator of this Batman site [2] for first informing me of the Empire Online campaign, which can be found here [3].

In this campaign, the Joker is being revealed one card at a time. From the time of this post, Empire Online says three days remain until its surprise is fully revealed.