A website for both Mail titles went live last weekend nine years after the Telegraph became the first UK newspaper to go on the internet. Dailymail.co.uk/Mailonsunday.co.uk has a six-strong editorial team working on breaking news, unique content and interactive features.
Last weekend's Mail on Sunday included a plug for the website in a news story about an attack on Iraqi civilians by a US helicopter gunship.
The site then directed readers to a link where they could view the footage.
Avril Williams, editorial director of Associated New Media, which produces the site, said: "This is really the model we are working to."
The site had a "soft launch" without publicity, but will be heavily promoted in the Mail titles from next week.
Williams said: "We are taking the content from the papers that's relevant to a web audience – a mixture of news, features, celebrities and real-life stories. But a lot of stories featured in the paper are very long and don't work on the web.
"There will also be interactive debates, picture grabs, video links and a lot of breaking news and original specials and packages."
The website has links to Associated New Media's established sites, such as Thisistravel and Femail, as well as to a new classified advertising site, Homes and Property, which was also launched at the weekend.
Williams added: "Associated News and Media has a lot of experience in building websites – we don't just put a newspaper online."