I know you probably have other things going on right now. I also know that people tend to zone out and think of a happy place whenever I start talking about Twitter. But I made this blog post short and I really hope you read it. It’s not about how much you need Twitter: it’s about how Twitter needs you. Over the past two years, I’ve watched as Twitter’s #physed community (sometimes known as the #pegeeks) has grown and flourished into what has become, by far, the richest professional development experience in......

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