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  Photo: Steve Granitz/WireImage

  Lady Gaga donated $1.5 million to Zynga's fundraising initiative with Save the Children  to support relief efforts in Japan. (The donation comes not long after Zynga raised more than $2.5 million, as well.) "I'm inspired that my little monsters banded together to help those affected by the terrible tragedy," she said. (Zynga)

• Twitter creator and co-founder Jack Dorsey tweeted yesterday that he is returning to the social network as head of product, though he'll stay on as CEO of the other company he created, the credit card transaction startup, Square. Dorsey's return raises the question of what happens to the company's other co-founder Evan Williams. According to The New York Times, Williams has been spending less time in the office, more time in Tahoe, and is currently hatching plans for another startup. (Fortune)
• Facebook may hire Robert Gibbs, President Obama's former White House press secretary for a position that would involve managing the company's communications. (The New York Times) More