"Futbol en Internet" literally means "soccer on the Internet" in English. The phrase can be applied to a variety of things, such as news about soccer on the Internet or the streaming of actual soccer games on the Internet.
Websites such as ESPN.go.com/WatchESPN have certain games people can stream and watch. For example, a match of the Arena Soccer World Cup between Brazil and Canada can be watched live and streamed afterwards for a limited amount of time. However, basically anything about soccer found on the Internet can fall under this phrase, including streaming games, scores or analysis about soccer.