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We only allow registered users to use ad blockers. You can sign up for free by clicking here or you can login if you are already a member., Inc. (AMZN), Yahoo! Inc. (YHOO): You’ll Never Believe What’s Threatening This Stock Now

You know those price alert emails, Inc. (NASDAQ:AMZN) sends you every time there’s a deal on something you’ve browsed? Pinterest wants a piece of that action.

Pinterest wants to be your shopping go-to. Source: Pinterest.

Last week, the visual network announced a feature that allows users who’ve pinned a for-sale item to their feed to be alerted when the price drops. “Product” pins take visuals from certain websites that allow Pinterest to also see price data. Nordstrom and Wal-Mart are among the bigger-name retailers to support product pins as of this writing.

Therein lies the problem for, Inc. (NASDAQ:AMZN) stock investors. Pinterest’s deep-pocketed allies have as much or more to gain from seeing the e-tailer disrupted.

Yet the plan isn’t without holes. Pinterest may have emerged as one of the more important social networks but Instagram still has a huge following while Yahoo! Inc. (NASDAQ:YHOO)‘s social additions to photo sorter Flickr saw a 50% increase in uploads shortly after the latest release in June. Pinterest needs to do more to stand out. Taking on, Inc. (NASDAQ:AMZN) will achieve that, but at what price?

If Pinterest has a built-in advantage it’s that iPad users love the service. Roughly 50% of social activity on the device runs through the image-driven social network, according to ShareThis. I suspect a good chunk of that activity is generated by shoppers posting pictures of recent buys or wants. Real-time price alerts could add up to huge savings for these sorts of consumers, which, in turn, would allow Pinterest to get even deeper hooks into them.

Expect, Inc. (NASDAQ:AMZN) to respond. How? I’m not sure, so I’ll put the question to you: What would you do about Pinterest’s plan if you were Amazon CEO Jeff Bezos? Leave a comment with your best ideas, and then tell us whether you’d buy, sell, or short Amazon stock at current prices.

The article You’ll Never Believe What’s Threatening Amazon Stock Now originally appeared on and is written by Tim Beyers.

Fool contributor Tim Beyers is a member of the Motley Fool Rule Breakers stock-picking team and the Motley Fool Supernova Odyssey I mission. He didn’t own shares in any of the companies mentioned in this article at the time of publication. Check out Tim’s Web home and portfolio holdings, or connect with him on Google+Tumblr, or Twitter, where he goes by @milehighfool. You can also get his insights delivered directly to your RSS reader.The Motley Fool recommends and Yahoo! and owns shares of

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