Readers paying attention to sportswriting for the past few months have had ample room for excitement. Not only have we been treated to great takes on the Super Bowl, March Madness, new seasons for baseball and tennis, the specter of an NFL lockout, NBA and NHL playoffs, and an upcoming Barcelona-Manchester United UEFA soccer final at Wembley Stadium — we’ve also seen the launch of several important publishing experiments on the web deliberately breaking out of sports’ traditional press box.