AP - When Facebook makes its long-expected debut as a public company this spring, the social-networking company will likely vault into the ranks of the largest public companies in the world, alongside McDonald's, Amazon.com and Bank of America.

AP - The criminal investigation into British tabloid skullduggery turned full force on a second Rupert Murdoch publication Saturday, with the arrest of four current and former journalists from The Sun on suspicion of bribing police.

AP - Twitter, a tool of choice for dissidents and activists around the world, found itself the target of global outrage Friday after unveiling plans to allow country-specific censorship of tweets that might break local laws.