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.

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.

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.

Asia markets mixed as India shares drop on worries over industrial production, inflation

Asian markets were largely mixed Friday as Hong Kong stocks rose for a third day and Indian shares dropped sharply after a worrisome readings on the country's industrial production.

Asia stocks drop after US mortgage plan (AP)

AP - Most Asian markets fell Monday as investors worried over the depth of U.S. credit and housing problems after the country's central bank moved to prop up ailing mortgage financiers Fannie Mae and Freddie Mac.

Market's Swoon Prods Investors to Try Options

Gyrating markets and eager brokerage firms are driving small investors into complex options trades, which can help hedge against stock-price swings, generate income and boost overall returns. But options can also present huge risks.