I'm not sure when the tipping point occurred, but at some point recently the “prepper” movement exploded and became mainstream. Preppers are folks who detect the possibility of calamity and decide to increase their odds of …

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PJ Media » Bunkers, Food, Armor: Disaster Prep Hits Mainstream

Social media nears the tipping point. Social network usage showed a similar pattern. In 2005, social and professional networks like Friendster, MySpace and LinkedIn were used by fewer than 15 percent of the online population

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The Next Wave of Social Media Nears Critical Mass: Tech News «