A recent research report by Hillary Mason of Bit.ly explores the lifespan of a link shared through social media. Her findings are that links shared via Twitter, Facebook, etc., have remarkably short life spans. She measured the half-life of shared links (the amount of time it took for a link to receive half as many clicks as in the previous time period) and learned that, for most links, the half life is two-three hours. (The outlier exception is links shared from YouTube, where the half life of a shared link is a whopping 7.4 hours.)

Graphs and the full report are available on the bitly blog.

Of course, this post is immortal, because as we all know, blog posts never die. Right?