Yardbarker, a Berkeley, California based — is a social news site with focus on sports. The site has sections for a wide variety of US sports, from the NHL to the PGA, and is prepopulated with player and team names so you can create watchlists for individuals, groups or franchises. This watchlist feature is great, it’s essentially a search feed but is very nicely implemented for usability.
Users can submit and vote on news, write their own “columns” (blogs essentially) and create watchlists of players, groups or teams to track. You can also track the articles.