If hockey great Wayne Gretzky received a quarter every time his most famous quote was cited, he'd probably have more money than he made during his sports career. That quote, of course, is: "I skate to where the puck is going, not where it has been."

Although Gretzky's statement has become a cliché, it remains great advice for investors. Looking ahead is much preferable to looking to the past.

It could be easier to "skate to where the puck is going" with investing than many might think. I predict that these four future technologies will be millionaire-makers -- and here are the top stocks to buy now to profit from them.

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Source Fool.com