Gmail and Whatsapp hit major milestones this week: They both have over 1 billion monthly users .
These services are part of the tech world's new "billionaire's club." We're not talking about moguls who are worth a ridiculous amount of money . This is a different kind of club, one that values reach and influence -- billions of views, billions of rides, billions of dollars donated -- instead of wealth.
This new club is taking over our phones, TVs, music and even our government, and it shows no signs of stopping. Here are nine members of this influential group:
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