Here’s what happened when Chris Savage, the chief executive of Wistia.com, searched for the phrase “private video sharing” on Twitter, a social networking site. One post he found read, “A teacher requested a private ‘video sharing’ Web site so that specialists can observe student behavior—can anyone refer one?”

That got Savage’s attention. He e-mailed back: “Still looking for a private video sharing site?”

Minutes later came the reply: “YES! It’s the first request for one—thought I’d hit up my tweets before [I] go digging.”

Savage: “Cool. You may want to check out Wistia.com. Full disclosure, I’m the CEO; -)”

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