A rare coin dealer says that a Northern California couple basically tripped over $10 million dollars last year when they discovered a can of old coins while out walking their dog.

Last night, three lottery-ticket-purchasers won the lottery, sharing a total jackpot of $448 million. Two of the winners are from New Jersey, one is from Minnesota.

Congratulations, person holding the ticket with 5-16-22-23-29, PB-6 on it! You just won the $550 million Powerball. That's right, you proved the naysayers wrong, and you're rich. But now what? As the haters will rush to remind you, winning the lottery is not always the best thing that could happen, but you'll prove them wrong. But first, how are you going to spend that half a billion and change? And if, for some reason, you didn't win tonight (impossible, I know), how will you spend your hard-earned fortune once your lucky numbers come up in a few months, which will definitely happen?

Tonight's Powerball jackpot — rolled over 16 times since October 6 — has reached $550 million, and officials think there's a 75 percent chance that the winning numbers will be drawn tonight.

Facebook just released its first-ever official financial numbers as part of its filing to go public, and they're very impressive. One billion dollars in annual profit impressive. Also: Much of humankind is hopelessly addicted to Facebook.

Facebook will file to go public tomorrow, in case you missed the rolling thunder bombardment of news articles this week, or in the months preceding. There won't be the faintest reason for the average person to care about this IPO until shares actually start selling months from now, but in the meantime you should steel yourself for endless breathless hype pandemonium. Oh, it's going to be awful.

There was a flurry of interest in Groupon's stock just before the IPO, driving up the price a bit. But Wall Street's crush on the online discounter was short-lived: Its stock plummeted today, for the second time in a month. Maybe reason will actually prevail in tech investing, just this once.

Yelp, the hive of entitled creeps, "elite" monsters and extortionate salesmen, filed to IPO at up to $2 billion valuation, four times what Google once offered. If people keep occupying Wall Street forever, maybe this unprofitable company/monster will just die.

Chalk one up for middle-aged mundanity over the edgy glamour of youth. Disney will pay around $40 million for Babble Media, the oft-maligned blogging hub for hipster parents, sources tell Business Insider. Disney will also onboard Babble's founders, whose hyperliterate porn mag Nerve was a critical smash but never very financially successful.

Groupon goes public tomorrow, and the financially frightful coupon startup should be a stock market hit: With about 10 times more prospective buyer than shares, the stock priced today at $20, up from an expected $16 - $18. So it looks like the tech bubble, inflated heretofore by private investment deals, is going public. How exciting.

Elevation Partners, which counts U2 frontman Bono and guitarist The Edge as investors, has seen its November 2009 investment in Facebook more than quadruple. And the gains are poised to grow even more.

It's probably wildly overvalued, so don't buy the stock. But if you're a happy Pandora customer, you can cheer the news that the magical online radio service's IPO went well today. Three billion dollars well.

Looking for a way to prove how little you paid attention in math? The Mega Millions jackpot is now $355 million!

Best paid CEOs of the decade: Larry Ellison and Barry Diller. Best performing: Not them.

A quarter of Foursquare's new $20 million venture capital infusion will go straight into the pockets of founders Dennis Crowley and Naveen Selvadurai, according to an SEC filing. Five million dollars is a nice reward for unprofitability.

Amazon.com CEO Jeff Bezos unveiled the Kindle DX, a large-screen e-reader, today at the site of the New York Times's former headquarters in Lower Manhattan. The message: He's the future and newspapers are the past.

To build the new, Google must tear down the old. As must its billionaire cofounder Larry Page, whose neighbors believe he's illegally tearing down houses in Palo Alto to make room for a gargantuan eco-mansion.

Twitter CEO Ev Williams and his wife, Sara Morishige, are building a house. What took so long? San Francisco's most disorganized Internet boss dude has been rich since 2003, after he sold Blogger to Google.

Dorothy McGivney joined Google in 2003, before the company went public, when employees could make fortunes, quite possibly in the millions, for tweaking the text of search ads. And now she's writing a travel newsletter.

What did the ex-wife of Google executive Omid Kordestani (net worth: $2.2 billion) do after getting dumped for a younger woman? She hooked up with a doctor and hired Julio Iglesias as her wedding singer.