Seven years ago, PRWeek identified corporate blogging as a trend that communicators had to embrace. Although some PR pros that steep themselves in social media believe blogs are passé at this point, companies continue to realize the benefits of an active blog. Industries once shy about jumping into new media are now stepping up. In May, GlaxoSmithKline opened a corporate blog in conjunction with a new Twitter feed.
 
Corporate blogs, of course, have evolved, and in many cases ...