The Guardian will invest £15 million in the relaunch of its website over the next 18 months to become part of "Web 2.0", chief executive Carolyn McCall has revealed.
Video would figure heavily in The Guardian's online offering, McCall told the Online Publishers Association conference in London.
"We know that there's quite a lot of revenue in video," she said.
McCall said Guardian Films, the company's television production company, had grown significantly in recent months as it has supplied video content for Guardian Unlimited. The six-year-old production company is now at break-even point, she said.
Advertisers are eager to be associated with innovative pubishing products of all sort, McCall said, pointing to the sponsorship deals The Guardian has struck for its podcasts.
She stressed that building the "community" of Guardian readers was very important to The Guardian's online development.
"The greatest risk any media brand faces is irrelevance – not being talked about or discussed," she stressed.
A major tipping point for The Guardian's online business, McCall said, would be when growth in combined print and online classified sales begins to offset declining print classified revenue. She predicted that this could happen "in a couple of years".