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by switch33 4166 days ago
I am also wondering of some companies have made money off these things.

I know of some examples off the top of my head, but I don't know too much specifics on how the idea came from or what exactly the sell/how they make money. I think a lot of the money comes from investors until they really start selling a product, and selling a product of just information is somewhat hard I think.

For example:

Mattermark-> tracks startups and provides info for VC firms and regular joes

Dataminr, StockTwits-> Monitor twitter for viral events or breaking news