Meet the Startup That’s ‘Like LinkedIn InMail, Except You Get Paid’

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“It’s like LinkedIn InMail, except you get paid!” reads the top of 21.co‘s web page. If you’re looking for a way to monetize the incoming email messages you receive from people outside your network, it’s worth investigating. Backed by Andreessen Horowitz, the company is on the radar with Silicon Valley’s early adopters, but remains mostly unknown two years...