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  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)
• Not exactly a surprise, but Sprint Nextel urged regulators to block AT&T’s $39 billion acquisition of T-Mobile USA. “This transaction is fundamentally anti-competitive, and you can’t fix that with merger conditions,” Charles McKee, Sprint’s vice president of government affairs, said. (If the deal goes through, the newly-formed AT&T and Verizon would account for 80% of U.S. wireless contract customers.) (Reuters)
• eBay will buy ecommerce and interactive marketing service GSI Commerce, for some $2.4 billion. GSI has over 180 clients across 14 merchandise categories. (Yahoo Finance)
• Java founder James Gosling is joining Google, though he has no idea yet what his role or duties will be. (CNET)
• RealNetworks CEO Bob Kimball resigned a year after taking the top spot. Executives say he left of his own accord after completing the company’s restructuring.(The Seattle Times)
• Chip company Tabula announced it had raised $108 million during its fourth round of funding, one of the largest in a decade for a chip company. Investors included DAG, Benchmark, Greylock, NEA and Crosslink. (VentureBeat)
• Rumors abound of what Apple will show off at this year’s WWDC conference for developers. Some say the next major update to its operating system, iOS 5, will make an appearance, while others are saying not to expect any hardware revelations. (In other words, no iPhone, iPad, or Mac hardware refresh announcements.) In fact, Mashable even goes so far as to say the iPhone 5 may be delayed altogether for a fall launch because of the recent introduction of the Verizon iPhone 4. (ReadWriteWeb, Mashable, and The Loop)
• By the by, if you’re still hunting for an iPad 2, Radio Shack just may get shipments in today… (9 to 5 Mac)

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