He promised vigorous and wide-ranging measures to restore order and prevent riots erupting again on Britain's streets.
Cameron also mentioned that he may turn to former Los Angeles Police Department Chief William Bratton for advice.
More than 900 people have been arrested since the trouble began Saturday when a peaceful protest over a police shooting turned violent.
The riots are being blamed for at least three deaths.
Police went to homes Thursday to round up suspects following four days of rioting. Britain's cities were, for the most part, quiet overnight.
The prime minister said businesses that were burned or looted will receive help to get back on their feet. Cameron told lawmakers there would be no "culture of fear" on Britain's streets.
He said the government, police and intelligence services were looking at whether there should be limits on the use of social media sites like Twitter and Facebook or services like BlackBerry Messenger to spread disorder.
BlackBerry's simple and largely cost free messaging service was used by rioters to coordinate their activities, Cameron's office said.
Government officials said they were discussing with spy agencies and communications companies whether messaging services could be disabled in specific areas, or at specific times.
The Associated Press contributed to this report.
