The reason why sites like Digg, Slashdot, Propeller and Reddit became popular was simple- they used the power of the internet. You could get to read the best articles from across the web, and people could rate the article as good or bad.
Soccerblogs.net was started by Oscar Merida as a one stop source for aggregating football/soccer feeds. It allows you to see what soccer blogs across the world wide web are saying regarding the beautiful game.