The Internet contributes 8.3% to the British economy, making it the leader across the G20. The entire G20 Internet economy will be over the $4 million mark in 2016, almost double what it is now. The Boston Consulting Group study also found that the UK GDP benefited by over GBP121bn, higher than construction and healthcare sectors. If the Internet were a separate sector, it would be the fifth largest.

Following the launch of its first mobile app, the magazine plans to add SEO to some of its earliest content, making it available by issue or subscription and bundled for its current audience. In a few weeks, it will launch a digital archive of every article ever published, dating back to 1829. Over 1m new web pages of Spectator content are to be created in the launch, which is being conducted with digital agency Netcopy.

This Is My Jam is a new website from an ex-Last.fm staffer where subscribers post their "must-listen" track of the moment. You can add words and photos before posting it to Twitter and Facebook profiles to show off your hipness. Matthew Ogle, founder of the site, says the goal is to "provide a new place to put your favourite song of the moment."

Twelve years from its launch, the social network is back as a destination for "collecting and keeping memories". The former darling of the UK social networking scene had more than 20 million registered users. But Facebook's popularity has cut that to 1.5 million unique visitors per month. Its new owner, ITV, thinks there is still space for Friends Reunited in the social networking era.

For the first time, digital ad spend worldwide will pass the print revenue of newspapers next year, says Aegis Group's Carat. The global ad market for both print and digital is forecast to grow by 5.5% in 2013. The media buying agency has cut in half its forecast for the European media market, to 1.5%, this year, despite the London Olympics. TV is expected to grow 5.5% this year and 5.3% next, while digital will zoom by 16.5% this year and 13.5% next.

Georges-Edouard Dias talks about the need for marketers to think about what their customers need. "Things don't stop when customers purchase a product, which is the way we behaved before. Now, purchasing is the point when you can start to have a conversation with them," he tells Lucy Handley. "We believe in social media because the most important phase for digital marketing comes after someone has purchased and experienced your product."

After the UK's consumer watchdog found that Groupon broke consumer-protection rules, the company has agreed to change its pricing, product claims and advertising practices. The Office of Fair Trading said the company must ensure its discounts are "honest and transparent." Roy Blanga, Groupon's UK managing director, acknowledged that "our procedures have not always kept pace with our rapid growth." The OFT began its probe in July after consumers complained.

The battle to have the world's largest online audience is demonstrated by a new reality: national news publications are going global. Just a quarter of the Daily Mail's online readers are in Britain, for example. That newspaper, by the way, is said to have overtaken the New York Times in audience size, per comScore. The Guardian's audience is one-third British and one-third American. Perhaps most interesting, the Huffington Post is beating newspapers with histories going back to the 19th century.

Britons are spending two weeks a year organising their emails, twice as much time as they spend socialising with friends and family. A study by OnePoll finds that 10% never delete their emails, keeping them for sentimental reasons and to keep a record of their digital history. The average inbox gets 14,600 emails a year. The number of newsletters alone -- like this one! -- have risen 300% over the past 12 months.

Foreign secretary William Hague calls the "UK for Iranians" site a "window on Britain" and says it will explain "the UK's policies towards Iran, whether on human rights, the nuclear issue or developments elsewhere in the Middle East".