Viewers who watch television shows online will soon be included in Nielsen ratings, the ratings service has reportedly told clients. According to Advertising Age , Nielsen plans to install meters in 7,500 homes later this month and begin collecting data from them by the end of August. In reporting the move, AdAge observed that the fact that Nielsen had not already done so "had been a significant source of grumbling" among the networks that have boosted online programming (in particular, presumably, the three networks that are partnered in Hulu, NBC, Fox and ABC).