About 4.5 million Canadians under the age of 17 use the Internet, according to a monthly study by online research firm comScore Canada. That's almost 19 per cent of the total online population in this country.

About one-fifth of Canada's online multimedia use, social networking and online gaming is done by children and teens. And as various forms of media change, the consumers of tomorrow are changing the way business will be done, said comScore Canada vice-president Bryan Segal.