For this week's Frackulous you're looking at Discovr Apps, Squrl, 8tracks Radio, WalkJogRun and Lightbox Photos.
Frackulous takes a daily look at the best apps around, covering everything from Blackberry to Android, and not forgetting of course, the iPhone. If it's hot, it's here. If it's not, you'll find it on some other app show.
Discover the best in original web series.
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