Motorola falls on downgrades, market share worries (Reuters)

Reuters - Motorola Inc shares slumped 7 percent on Monday to their lowest levels in five years after analysts downgraded the mobile-phone maker on fears it cannot staunch market share losses in North America.

Retailers are latest to feel wrath of markets as sales slide<

The value of Carphone Warehouse and Home Retail Group plunged yesterday, as the focus of a volatile stock market turned on the retail sector. Shares in both companies fell sharply, as investors seized upon the most disappointing aspects of their respective trading updates.

Mac OS X Market Share Nears 8% (TechWeb)

TechWeb - InformationWeek - The global market share for Linux jumped in the past 10 months, while Microsoft's Windows lost a few points, says Net Applications.

Calamos Hunts Stocks That Can Accelerate Earnings, Sustain Growth (Investor's Business Daily)

Investor's Business Daily - Nick Calamos is a portfolio manager, head of investments and chief investment officer for Calamos Investments. The firm was founded in 1977 by his uncle, John Calamos Sr.

iPhone market share at 19 percent in 1Q, IDC says (AP)

AP - Apple Inc.'s iPhone, a new model of which is widely expected this summer, took 19.2 percent of the U.S. market for "smart" phones in the first quarter of 2008, according to research firm IDC's vendor survey.

iPhone market share at 19 percent in 1Q, IDC says

Apple Inc.'s iPhone, a new model of which is widely expected this summer, took 19.2 percent of the U.S. market for "smart" phones in the first quarter of 2008, according to research firm IDC's vendor survey.