-Now, everyone knows what happens when you drop a handful of Mentos at a Diet Coke.
-There's an amazing geyser, there's 25 or 30 feet air.
-And the process of playing around with this chemical reaction, Stephen Voltz and Fritz Grobe unknowingly became viral video stars.
-We put up - we told one person on Monday morning, let [unk]
-Alright boys, anytime, take it away.
-In less than seven years, more than 100 million people have seen this Diet Coke and Mentos video earning the team more than $30,000 - that's led to more videos and partnerships with McDonald's and Coca Cola and has forced Stephen to rethink his career as a trial lawyer.
-I'm not making the same money as my kids like but it's a lot more fun.
-These people are making a lot of money.
They're putting the kids through college doing this, quitting their jobs to be able to do this because they have a steady income from this audience that they've built.
-Kevin Lockheed whose team tracks video trends for YouTube.
To him, a winning video has to be shareable.
-We don't just want to watch those videos.
You want to talk about them to somebody else.
You want to post them in your social media feeds.
You want to have a conversation.
-In a new book on the topic, Voltz and Grobe explained what they think are the key elements to viral success.
-Be true, don't waste my time, be unforgettable and ultimately [unk]
-As for what they're working on next, well, you might just have to wait until someone forwards you the link.
In San Francisco, I'm Kara Tsuboi, CNET.com for CBS News.