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The Lala purchase and an iTunes overhaul could tighten Apple's already dominant stranglehold on the music industry's digital-downloading segment. Apple may see a fundamental shift in technology, and it's trying to get out in front.

Nike Shox are popular with NBA players and, therefore, with plenty of teenagers. You can get a pair online for as little as $40. That's pretty low for a designer sneaker, but not as low as the prices usually go at Wal-Mart. So Nike, fearing being undercut by a similar sneaker being put out by the...