How powerful is Bitcoin?

Network generates more power than 500 supercomputers. Daily electricity use: $200,000.

• Japan stocks rebound after big plunge
• Check world markets
• U.S. stocks claw back from steep losses
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• Obamacare in California cheaper than predicted
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• The 4 hedge funders losing big in the Japan rout
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• Solar subsidies don't merit costly trade war with China
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BuzzFeed: Making Business News Go Viral

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• SAC's Cohen Get Subpoena to Testify: NY Times
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Cheaper, Store-Brand Sunscreens Offer Better Protection

You might think that a costly sunblock would be better at blocking UVA and UVB rays than a store brand at, say, Walgreens. However, according to Consumer Reports’ annual sun survey, that’s wrong. In tests of 12 sunscreen lotions and sprays to gauge their effectiveness...

• Watch: NJ Bars Accused of Serving Cheap Booze
• New Home Sales Rise, Jobless Claims Drop
• Bars Accused of Booze Fraud, Serving Rubbing Alcohol
• 9 Tips to Finding Cheaper Gas on Memorial Day Weekend
• Borders Card Holders Left With Squat
• Photos: Ellen Buys $26.5M Home
• Global Stocks Plunge After Japan Selloff
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• Mo. Cashier Sells Herself $1M Powerball Ticket
• Getting the Most Out of Travel Rewards
• Scammers Steal Gas Station
• Watch: Scammer Holds Sale at Gas Station, Runs Off With Cash
• Inventory Your Stuff Before Storm Strikes
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• Goodbye Pension, Hello Cash: Danger Ahead
• No Summer Slowdown for GM, Ford
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• Watch: Apple CEO: 'We Pay All the Taxes We Owe'
• Apple CEO: 'No Tax Shifting Going On'
• Nutella Crisis Averted as Maker Caves
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• Watch: Apple's Tax Loopholes Makes Feds Sour
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• Photos: Rocker Buys Soap Star's Home
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Lyft Off: Car Sharing Startup Raises $60 Million Led by Andreessen Horowitz

Popular car-sharing startup Lyft has raised $60 million in a major new round of funding led by Andreessen Horowitz, the influential Silicon Valley venture capital firm started by Netscape co-founder Marc Andreessen. The new funding comes as the ride-sharing market is exploding, with upstart firms like Lyft, Uber, and Sidecar leveraging smart phone technology to provide alternatives to traditional

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• Photo Shoot Your Way to Sales Growth
• The Consumer Psychology Behind Warby Parker’s $95 Pricing for Eyeglasses
• US Unemployment Aid Applications Fall to 340K
• ‘Loser’ No More: Tesla Repays $465 Million U.S. Loan
• How ‘Extreme Couponing’ Is Ruining Coupons
• The Next Real Estate Bubble Has Already Begun (But It’s Not What You Think)
• Memorial Day Gas Prices: After Wild Ride, About Where We Were Last Year
• Bernanke’s Dilemma: No Good Moves Left
• Theme Park Inflation: Universal Orlando Becomes First to Cross $90 Admission Mark
• JetBlue Proves There’s a Reasonable Way to Hit Us With Fees
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• The Unspeakably Wonky Idea That Can Solve the Corporate Tax Debate
• Banking on Business Growth
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• Inside Yahoo!’s Tumblr Deal: Here’s Who Hit the Billion Dollar Jackpot
• It’s Official: Tech Has Replaced Banking as the New Corporate Bad Guy
• Apology Not Accepted: The Right — and Wrong — Way to Say You’re Sorry
• The $7,000 Computer Science Degree — and the Future of Higher Education
• Apple’s Cook to Face Senate Questions on Taxes
• When Good Things Happen To Bad People: Disturbing News About Workplace Bullies
• 14 Simple Ways to Get Considerably More Done
• Car Sharing: Future Looks Bright, Even With Some Cloudy Legal Issues
• Gambling on Tumblr: Marissa Mayer’s Billion-Dollar Bet to Make Yahoo Cool
• Republicans Seem to Be Out of Economic Ideas — Here Are Two Suggestions
• How Much Will a Legal Marijuana Habit Cost You?
• U.S. Gas Prices Up 11 Cents Over Past 2 Weeks

Procter & Gamble brings back former CEO to fix company

(Reuters) - Procter & Gamble Co on Thursday brought back A.G. Lafley to run the world's largest household products maker, replacing Bob McDonald immediately in the midst of a major restructuring.

• Asian stocks shaky, Nikkei still seen vulnerable
• Google, like Facebook, in talks to buy Waze for about $1 billion: report
• Google faces new federal antitrust probe: source
• Salesforce.com's quarterly results disappoint Wall Street
• U.S. options clearer moves to end trade type dominated by Nasdaq
• Salesforce.com's quarterly results disappoint Wall Street
• Analysis: Markets face rough summer ride as Fed pullback feared
• Sears losses mount, weighs sale of unit to shore up liquidity
• Goldman unveils checks on conflicts in bid to fix image
• Former Goldman banker settles SEC 'pay-to-play' charges
• Proxy advisory firm settles SEC charges over data breach
• Wall Street sags, but ends off session lows; HP hits 52-week high
• U.S. sees first drop in F-35 costs; other programs steady
• Google faces new federal antitrust probe: source
• Ally settlement may be a boon for ResCap bondholders
• SAC lawyers met prosecutors to argue against charges
• NYSE says AEP, NextEra trades stand after crash at open
• Icahn seeks up to $7 billion for Dell bid
• Gap profit soars; Aeropostale first quarter sales plummet
• Sprint, SoftBank complete U.S. state regulatory review process
• Pentagon sees slight drop in F-35 acquisition costs: sources
• Who repaid U.S. loan first? Chrysler, Tesla don't see eye to eye
• Goldman unveils checks on conflicts in bid to fix image
• U.S. prosecutors sought testimony from top SAC executives: WSJ
• JPMorgan names Barry Sommers to head consumer bank
• EU denies breakdown in solar panel talks
• Ally to pay $2.1 billion to settle claims tied to ResCap
• Elan rejects Royalty's $6.4 billion raised offer
• Large U.S. retailers sue Visa, MasterCard over card fees