Heavy social media users tend to spend less money online

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Source:  Analysis by Nick Tabbal of Resonate Networks in Forbes, 14th August 2011
Note:

"Heavy Social Media Users: people who spend an average of 26% of their online time on Social Media
Medium Social Media Users: people who spend an average of 4.1% of their online time on Social Media
Light Social Media Users: people who spend an average of 0.42% on Social Media"