When the New York Times (and every other media outlet — good job, Buffett's PR firm!) went on and on about Warren Buffett's $31-billion donation to the Bill and Melinda Gates Foundation, and how Buffett and Gates are such good pals, it seemed fair to point out other tech mogul buddies like the heads of Apple, Oracle, and Google — and to diagram them in this handy guide.

A $31 Billion Gift Between Friends [NYT]

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