How many books can you get through in a year? By joining the 50 Book Pledge initiative and using the official tag, #50BookPledge, on Twitter, book lovers everywhere can keep track of exactly just how much of a bookworm they are. It all started with the creation of The Savvy Reader, a blog created back in 2006 and hosted by HarperCollins Canada. It was a response to the then-outdated HarperCollins website, which didn’t reflect the values and services the publishing company wanted to give to its readers. Through The Savvy Reader, HarperCollins is able to “connect and engage with readers as readers rather than as publishers and marketers,” says Kaitlyn…