Just after he logged his 100,000th tweet, NPR's Andy Carvin told people on Twitter that he's taking the week off so he can work on a book about covering the Arab Spring via social media. "So I'm planning to write a book about the last 11 months, from #sidibouzid til now. Any favorite stories you'd want me to cover? #arabspring." Rather than trying to do a comprehensive history of the uprisings, he plans to focus on "moments that stood out via social media and impacted how I thought of journalism." The 2009 protests stemming from the disputed Iranian presidential election will figure in the book as far as "the role social media played in getting the world's attention." Carvin, who has talked about the risk of burnout as he tweets day and night, said he'll include something about how his coverage has affected his life, but he doesn't want it to overshadow the revolutions. || What you don't see: Twitter user @geektw asks Carvin, "Don't you ever feel useless knowing that all you are doing is aggregating short messages, many of which you cannot verify?" Carvin responds: "Not really, because you're assuming that I'm only talking to people via Twitter. I have sources you'll never see me tweet." || Earlier: Carvin wins Knight-Batten innovation award for his coverage of the Arab Spring