According to new data from Nielsen Online, Web traffic to the Apple Inc's sites collectivly grew 13 percent year over year in the first quarter of 2008, from a three-month average monthly unique audience of 42.9 million to 48.4 million. Total minutes spent on the site grew 12 percent year over year, from 9.4 billion in Q1 2007 to 10.5 billion in Q1