This post originally appeared on the Buffer blog. Here’s a riddle: When is a tweet more than a tweet? We’re all pretty familiar with Twitter’s 140 characters—and of course,_a photo is always an eye-catching addition. But what if your Twitter audience could_sign up for your email list_without ever leaving Twitter, or directly download your new app straight from a tweet? What if a photo and article summary could travel alongside every post of your content? And what if you could do all of this for free, right now? Twitter cards offer all this potential and more. In this post, we’ll...
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