[wp_scm_mashable_stumbleupon]
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StumbleUpon Doubles User Base in 16 Months, Surpasses 20 Million Users
By
Sarah Kessler
on
Sarah Kessler
Sarah Kessler wrote about entrepreneurs as well as emerging technology trends in education, activism and social media. She joined Mashable as a features writer in August 2010.Sarah started her career in journalism at a local paper when she was 16 and continued to freelance for a handful of local publications throughout college. At Northwestern University, she was the editor-in-chief of a nationally distributed global education magazine called Abroad View, wrote for the Chicago endurance sports magazine Windy City Sports and co-created a radio documentary that aired on WBEZ Chicago. She also participated in the Medill Innocence Project, which investigates wrongful convictions.Sarah has written for Sierra Magazine, where she had the opportunity to explore her existing passion for the outdoors, and for Inc Magazine, where she developed a passion for startups.
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