garzpacho writes "BusinessWeek has a look at the big tech alliances that have been announced recently. From the article: 'In the war for dominance of the Net, May 25 turned out to be a big day for alliance making... The pairings highlight the importance the fast-growing, $12.5 billion Internet ad market and the race to get in front of as many Web surfers as possible. The alliance with eBay gives Yahoo a way to narrow a lead by Google in generating advertising sales. Paring with Dell, meantime, helps Google muscle in on Microsoft's dominance of the desktop. These alliances are predicated as a response to a looming threat...'"