Eight lives changed by Twitter

Published On: Mar 21 2013 12:22:14 PM PDT   Updated On: Dec 26 2013 11:43:23 AM PST

An offensive tweet about AIDS in Africa created a firestorm over the weekend and ultimately cost public relations executive Justine Sacco her job. Check out eight lives changed by the popular microblogging site.

Twitter turns seven - Pope Francis
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Franco Origlia/Getty Images

Twitter sometimes reveals the lowbrow side of celebrity culture, but also brings fans closer to their favorite actors, musicians, writers, athletes and public figures than was ever possible before.

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