In early trading on Friday, shares of Visa ( V ) topped the list of the day’s best performing Dow Jones Industrial Average components, trading up 6.0%. Year to date, Visa registers a 0.2% gain. And the worst performing
E commerce giant Amazon.com Inc. ( AMZN ) recently launched Amazon Workmail, its new e mail and calendar service for businesses, in a bid to establish itself in the corporate technology market currently dominated by behemoths Microsoft ( MSFT