Directcommunicationwithfriendsandacquaintancescouldbefilteredorblockedas a rivaltoestablishedmodelsofserviceandcommerce.
インターネットの2つ、3つまたは4つのクラスのモデルがあるだろう。
Oncesuch a controlandfilterinfrastructureisintroducedandestablished, filteringanddiscardingofunwelcomedatalikecompetitiveoffersorservicescanbedoneeasily.
Thinkofitlike a setofTVchannelsfrom a pay-tvprovider, whereinadditiontobasicprogrammes, therearepremiumprogrammesthatarechargeddifferentlydependingonthechannel.