Online users are spending more time on social networks and games, and less on e-mail and traditional web portals, according to a report released by research firm Nielsen.

The report, which studied the online activity of 200,000 Americans for a year until June 2010, revealed that the time spent on social networking sites grew by nearly half -- from 16 per cent to 23 per cent. Social gaming surpassed e-mail to occupy the number two position in the respondents' online activity.

Use of search portals such as Yahoo and Google dropped from 5.5 per cent to 4.4 per cent of online time. This is likely to be due to Facebook status updates often containing direct links to articles and videos, cutting down on search time.

The streaming of videos and movies rose to 3.9 per cent from 3.5 per cent during this period, the report added.