More than half of the consumer magazines with a monthly traffic of 1.5 million unique users and more are profitable, according to a survey.

Advertising is the largest revenue source with 83% of these websites saying it is most important. Weekly magazines are more than twice as likely to be profitable than those of quarterlies. Almost two-thirds of the sites that do make a profit offer their content for free.

Some 665 consumer magazines completed the survey Magazines and Their Web Sites conducted by Abt SRBI for Columbia Journalism Review.

More: Graphs and figures ... http://www.guardian.co.uk/media/pda/2010/mar/08/magazine-websites