Mark Zuckerberg says a stalker is using Facebook to send him creepy messages and threaten his personal safety. According to TMZ, the young Facebook CEO recently filed legal papers claiming that 31-year-old Pradeep Manukonda has tried to "follow, surveil and contact Mr. Zuckerberg using language threatening his personal safety," along with the safety of his girlfriend and sister. Meanwhile, law enforcement sources tell TMZ that Manukonda has gone to several Facebook offices in Palo Alto attempting to contact Zuckerberg to ask for money. It's all too common for public personalities to attract overzealous followers, but the success of Zuckerberg's …

Social content sharing platform Meebo is buying online ad measurement and targeting firm Mindset Media. No word on the price tag, but the deal was no doubt made possible by Meebo's recent $25 million funding round. "As an online branding specialist that has a particular focus on consumer packaged goods marketers, Mindset is expected to enhance Meebo's existing work with brand advertisers without sacrificing its direct response business," paidContent reports. Meebo has recently been working on new features for its ad-supported toolbars, which can be seen on such sites such as TVGuide.com, Mediaweek.com and Maxim.com. The bars stay in …

Stripes Convenience Stores knows customers love its take-out tacos. So when it went looking for a way to share that enthusiasm with a wider audience, it chose a novel approach: Using digital billboards, streaming their Twitter comments for all to see. "Stripes really wanted to push the envelope," Ian Dallimore, digital strategist at Lamar Advertising in Baton Rouge, tells Marketing Daily. "It wanted to communicate with consumers and let them know that the company is listening to them. They said, 'Let's have our customers write the digital copy through tweets.'" The campaign, created by Firehouse Agency in Dallas, …

Fresh off its $500 million investment and $50 billion valuation, Facebook today announced it's moving to larger quarters in Silicon Valley. Starting in June, the company will begin shifting the 1,400 employees in its Palo Alto, Calif. headquarters to a 57-acre campus formerly occupied by Sun Microsystems in nearby Menlo Park. The property contains nine buildings totaling about 1 million square feet. Facebook has also purchased an adjacent 22-acre tract at 312 and 314 Constitution Drive connected to the campus by a tunnel, underneath the Bayfront Expressway, for possible future development as a subsequent expansion phase. Facebook will maintain …

Walmart Foundation says it is giving $2.5 million to Goodwill, to create a "Beyond Jobs" program for single moms in Atlanta, Boston, Los Angeles County, Detroit, and New York City, through 2012.

iCrossing just unveiled plans for a new initiative to bring brands, agencies and media companies together to explore future content. Dubbed the "The Content Lab," the initiative will live online at http://thecontentlab.icrossing.com, or can be followed on Twitter a @TheContentLab, and will feature a series of forums developed by iCrossing and parent Hearst Corp., which acquired iCrossing last year. In support of the initiative, Hearst and iCrossing today released the white paper Building a Connected Brand: How Brands Become Publishers in a Real-time Marketing World: http://icrsng.com/brandsaspublishers.

New data from comScore shows Android increased its U.S. market share to 28% in December from 25% the prior month, narrowing the gap with RIM's market-leading BlackBerry platform, which dropped from 33.5% to 31.6%. Apple's iOS held steady in the No. 3 slot, with 25% share. For the three months ending in December, Android has picked up 7.3 percentage points in market share compared to 0.7 for Apple and a decline of 5.7 points for BlackBerry. In terms of mobile data use, 68% of mobile subscribers were text messaging, 36.4% used a mobile browser, 34.4% downloaded an app, 27.4% …

The Tribune Company, publisher of the Los Angeles Times and Chicago Tribune, has joined the Mobile Marketing Association as a premium member, the trade group's top membership tier. The program involves a long-term commitment and at least a six-figure investment by participating companies to help promote the mobile marketing industry. In return, they get prominent sponsorships opportunities at MMA events. Other premium members since the initiative was started in November 2009 include Alcatel-Lucent, Microsoft Advertising and The Coca-Cola Company. In connection with the move, Andy Vogel, Los Angeles Times vice president of emerging media, will represent the Tribune Company on …

Aircell, the parent company of in-flight wi-fi service Gogo, just raised another $35 million in financing. “That's more than $500 million in total financing raised so far, to bring you Internet access while you're in the air,” reports The San Francisco Chronicle. Aircell CEO Michael Small said the company has recently made major financial improvements, and is on the "path to profitability." Small also told SFGate.com that the company's growth curve is accelerating thanks to more airlines installing wi-fi on more of their planes. During a recent Google-sponsored promotion, Small said that Gogo did 3 million wi-fi sessions over …

Omnicom's Diversified Agency Services division has acquired online community builder Communispace. Financial terms of the deal were not disclosed. "Reports that Communispace was looking for a buyer first surfaced in mid-December, and Omnicom was named as a potential suitor alongside various venture capitalists, tech firms and marketing agency holding companies," reports Research magazine. Dismissed at the time, Communispace was reportedly being valued at $100 million. Communispace head Diane Hessan is expected to stay on, and continue to serve as president and chief executive officer. The deal follows Omnicom's Diversified Agency Services' purchase of predictive modeling and advanced analytics firm …