Summary Box: Gold falls on lack of ECB stimulus

TARNISHED GOLD: Gold fell after the European Central Bank offered little hope that it will provide more stimulus money to help the region. It also was pressured by lackluster April retail sales and slower growth at U.S. service companies.

PROSPECTS DIM: Investors speculated that there is less of a chance that the Federal Reserve will launch another round of bond purchases if the European bank isn't taking similar action. That's because the economy is healthier in the U.S. than it is in Europe.

WINNERS, LOSERS: Prices for silver, copper and oil fell. Natural gas, wheat and corn rose.

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Summary Box: Yahoo expands Facebook lawsuit

LEGAL SKIRMISH: Yahoo is expanding its allegations of intellectual property theft against Facebook. In court papers filed Friday, Yahoo Inc. says Facebook's online social network is infringing on 12 of its Internet patents. That's up from the 10 alleged violations that Yahoo cited when it initiated the lawsuit March 12.

GETTING NASTIER: Yahoo denied allegations that it's also infringing on Facebook's patents and accused its rival of engaging in shady conduct. Facebook said it's perplexed by Yahoo's "erratic actions."

MORE DRAMA LOOMS: The acrimony is spilling out as Facebook prepares to raise $5 billion in a highly anticipated initial public offering of stock.

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Summary Box: Oracle spars with Google in trial

LEGAL SHOWDOWN: Oracle delivered its opening statement in a federal court trial revolving around its allegations that Google stole a key piece of programming technology called Java to build the Android operating system that now powers more than 300 million smartphones and computer tablets.

FIRST JABS: In an hour-long presentation before a jury Monday, Oracle Corp. lawyer Michael Jacobs highlighted a series of internal emails indicating Google's top executives knew the company needed pay licensing fees to use Java in Android. A licensing agreement was never worked out.

NEXT ROUND: Google Inc.'s lawyers will counter with their opening statement Tuesday.

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Summary Box: Google CEO grilled in Oracle trial

THE WITNESS: Google CEO Larry Page spent nearly an hour in a federal courtroom Wednesday, called as Oracle's witness in its legal dispute with Google.

THE ADVERSARY: He was grilled by David Boies, a tenacious lawyer who made headlines for grilling former Microsoft Corp. CEO Bill Gates in an antitrust lawsuit filed by the U.S. government in 1990s. Boies is working for Oracle in this trial.

PERFORMANCE: The taciturn Page often looked uncomfortable. He frequently said he couldn't remember seeing some of the internal Google documents that Oracle is using to build its case.

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Summary Box: Markets rein in hope for UK stimulus

LOWERING EXPECTATIONS: The markets reined in their hope for further economic stimulus from the Bank of England after minutes from the central bank's last rate-setting meeting showed its monetary policy committee almost unanimously decided against changing course.

THE NUMBERS: In response, the pound rose from about $1.594 to just under $1.60.

LONE SUPPORTER: David Miles was the only committee member to advocate that the Bank of England free up money in the British economy by buying up bonds and other assets from banks. He voted with the other eight members to keep the main interest rate at a record low 0.5 percent.

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