During my month-long hiatus from this blog, I got hooked on another form of social media: Twitter. Unlike Facebook, which facilitates staying touch with family and friends, Twitter is a freeform broadcast to just about anyone on the planet. That might not sound like a medium that would interest a relatively private person (like me), but it turns out that Twitter makes it ridiculously easy to connect with people you’ve always wanted to know. You can tweet with editors of magazines and publishing houses, ask a quick question of New Yorker writer Susan Orlean, compliment Dave Matthews on his latest album and keep up with environmental issues from the Guardian Online, The Climate Project and other…