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Perhaps the most practical entry of this list, LifeHacker's duo of "Most Popular Free Downloads" presents the most popular free programs downloaded by Windows and Mac users over the past year (using the site's own traffic measurement as a guide). You'll find tools like a PDF to Word document converter, a simple audio/video file converter, and an open source challenger to the iTunes beast.

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Love it or hate it, there's no denying 2008 was the year of the iPhone -- and, of course, the endless piles of apps. The guys at MacLife went through the App Store's thousands of options and picked out 101 of the best options available. This exhaustive compilation is well worth a read for any iPhone fanatic.

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