A new Barna study shows that, in the last two years, there has been a significant leap in the number of pastors and churches engaging social media. More than one in five American pastors (21%) say their churches use Twitter, up from only 14% in 2011. Facebook usage in churches has likewise jumped from just over half (57%) to a full seven in 10. Pastors themselves are also engaged in online communication, with nearly one-quarter (23%) who use Twitter, well over six in 10 (66%) who are on Facebook, and over one in five (22%) who have a personal blog....