Usability 
Founded a year and a half ago by several ex-AOL and Yahoo executives with seven figures of venture funding, SB Nation (for Sports Blog Nation), is a collection of over 250 individual blogs. The SB blogs offer sports news, scores and fan opinion for specific teams, leagues or sports. There are SB blogs for most of the NBA, NFL, NHL and MLB teams, many colleges plus soccer, golf, tennis, motorsports, cycling, horse racing, boxing and just about every other sport you can think of.