PALO ALTO, Calif. (TheStreet) -- It doesn't matter that Mark Zuckerberg's $6.9 billion makes him richer than Apple's (AAPL) Steve Jobs, that Jesse Eisenberg is playing him in The Social Network or that his $100,000 million donation to Newark schools makes him a philanthropic force. Facebook's going down.If there's one truth about social networks, it's that there's always another waiting right behind it. Xanga begat Friendster. Friendster begat MySpace. MySpace begat a $580 million buyout by News Corp. ( NWS - Get Report) that made social networking a gold mine. That gold mine begat Facebook and a business strategy that made Zuckerberg and his site worth more than the GDP of Angola. This always begets the question "What's the next Facebook?" The answer's not so easy, as even Facebook won't be Facebook in its current form if a rumored IPO comes to fruition. Is it Twitter, which is still launching "New Twitter" and figuring out how to monetize tweets? Maybe not, but the "next Facebook" likely won't look anything like Facebook at all. Much as MySpace tweaked Friendster's formula and Facebook cleaned up MySpace's approach, another concept will succeed where Facebook will inevitably fail. These are the best guesses as to what that heir to the social throne may look like: Diaspora: You know you're onto something when Zuckerberg himself helps fund your project. Still under development, the project is the brainchild of four students from New York University who freaked out a little bit when Columbia University law professor Eben Moglen characterized centralized social networks such as Facebook as "spying for free." The group wanted to create an open-source Web server that would remove a social network's hub and allow users greater propriety over its information and content. An April announcement on fundraising site Kickstarter collected $200,000 from more than 6,000 donors, including Zuckerberg, who thought it was a "cool idea." Though a preview released earlier this month was flogged for its security shortcomings, the group still plans to have make its multimedia sharing, Voice over Internet Protocol and instant-messaging platform consumer-ready by October. Meebo: Why settle for the next Facebook when you can have the next Facebook, Twitter, LinkedIn and whatever comes next with you at all times? The purpose of Meebo, which went live in 2005, is to make it possible for social media users to access all of their friends lists at once and be able to send those friends information from various sources. The site has agreements with Google ( GOOG - Get Report), Yahoo ( YHOO), AOL ( AOL), Twitter and, yes, Facebook to help it offer this service to 63 million unique users, but those agreements aren't without their problems. Last year, Facebook forced Meebo to take down its integrated Facebook chat when they felt Meebo's method wasn't secure enough.
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