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LinkedIn tops 100M members in IPO run-up

LinkedIn Corp. said it reached 100 million members Tuesday, as the professional social-networking site grows to include nearly a million teachers, dozens of Elvis impersonators and one “martini whisperer.”

The milestone comes as LinkedIn gears up for a much-anticipated initial public offering of stock expected to open the IPO floodgates for  social-networking sites. Get the full story »

Microsoft sues Barnes & Noble over Nook

A customer tries out a Nook electronic book reader at a Barnes and Noble. (AP Photo/Seth Wenig)

Microsoft Corp. sued Barnes & Noble Inc. and the manufacturers of Barnes & Noble’s Nook electronic book device, escalating a series of patent battles over gadgets based on Google Inc.’s Android operating system.  Get the full story »

Blackberry Playbook to go on sale April 19

Research In Motion’s long-awaited tablet, the BlackBerry PlayBook, will go on sale in the United States and Canada on April 19 at a base price of $499. Get the full story »

Apple sues Amazon over its ‘App Store’

Apple Inc. sued Inc. over its use of the phrase App Store, accusing the online retailer of trademark infringement. In a complaint filed March 18 in the U.S. District of Northern California, Apple asked the court for an injunction stopping Amazon from using the name as well as unspecified damages. Get the full story »

Groupon hosts 1st Ill. Innovation Council meeting

Groupon's headquarters at 600 W Chicago Ave. (Brian Cassella/ Chicago Tribune)

Popular daily coupon website Groupon’s Chicago headquarters was the site of the first meeting of the Illinois Innovation Council. Gov. Pat Quinn’s office says the Monday meeting focused on where Illinois can be a hub for innovation and where Illinois is an emerging leader, like clean energy, biotech and life sciences and information technology. Get the full story>>

Ex-Goldman programmer gets 8 yrs for code theft

A former Goldman Sachs Group Inc computer programmer was sentenced to eight years in prison on Friday for stealing secret code used in the Wall Street bank’s valuable high-frequency trading system.

Sergey Aleynikov, was arrested by the FBI and charged in July 2009 with copying and removing trading code from Goldman before taking a new job at Teza Technologies LLC, a high-frequency trading startup firm in Chicago. Get the full story »

New browsers offer major improvements

Kate Pietrelli, marketing director of hi5, shows off a browser during a Microsoft Explorer event. (Chip Chipman/Bloomberg)

After a decade-long hiatus, the browser wars are officially back. With this week’s release of Internet Explorer 9, last week’s Google Chrome 10 release, and this month’s expected release of Firefox 4, the three most-used browsers are all trying to outduel one another with the most impressive specs. Safari 5, which was released in June, also features many of the same modern features. Get the full story »

Major spam network shut down

Microsoft Corp. and federal law enforcement agents seized computer equipment from Internet hosting facilities in Chicago and other U.S.cities on Wednesday, in a sweeping legal attack designed to cripple the leading source of junk email on the Internet. Get the full story »

Apple shares continue slide after downgrade

Apple Inc. shares slid for a second straight day after a rare broker downgrade stoked worries that the company’s torrid pace of growth will slow.

Shares in the world’s largest technology company were down 4.4 percent to $330.08 in early afternoon trading, a loss in market value of about $10 billion. The shares fell 2.3 percent Tuesday. Get the full story »

Morningstar opens database to CPL members

Chicago-based Morningstar Inc. is opening its investment research database for free remote access by Chicago Public Library members.

Remote access means users can log into the Morningstar Investment Research Center from any computer using their Chicago Public Library credentials and do not need to create accounts at Get the full story »

Motorola’s Wi-Fi-only Xoom to sell for $599

Motorola Mobility says it will start selling a Wi-Fi-only version of its Xoom tablet computer for $599 on March 27. Get the full story »

Motorola Solutions hits road for annual meeting

Schaumburg-based Motorola Solutions Inc. is holding its annual stockholders’ meeting in Washington, D.C. this year, going out of town for its first shareholders gathering as an independent company.

This year also marks the first time Motorola has held its stockholders meeting outside of the Chicago area. Get the full story »

Microsoft adds do-not-track tool to Explorer

Ryan Gavin, senior director of Internet Explorer for Microsoft, shows IE9 last month in in San Francisco. (Reuters)

A new version of Microsoft Corp.’s Internet Explorer to be released Tuesday will be the first major Web browser to include a do-not-track tool that helps people keep their online habits from being monitored. Get the full story »

Apple iPad 2 sells out in first weekend

(Mario Tama/Getty Images)

Apple Inc.’s new iPad 2 flew off of the shelves on its first weekend. The company’s stores in major U.S. cities had sold out of the updated tablet device within hours of its introduction at 5 p.m. local time Friday, according to surveys by analysts. On Sunday, Apple’s online store was showing a shipping delay of three to four weeks for all of the versions of the iPad 2.

Analysts put sales of the new iPad in the range of 400,000 to 600,000 units during its first three days on the market, about the same range as the original model sold its first week. Get the full story »

iFans line up again — this time for iPad 2

The iPad 2 line formed early outside the Apple Store on North Michigan Avenue. (Phil Velasquez/Tribune)

They could have placed an online order early Friday morning. They could have waited until next week.

But that is not the way of Apple fans. That’s why hundreds of them lined up outside the Michigan Avenue Apple Store Friday to buy the iPad 2, the company’s second-generation tablet computer. Get the full story »