Twitter will trial allowing users to follow interests as well as individual accounts, according to "Mobile Marketing."

Teenagers are turning away from Facebook in France and Germany, according to eMarketer. The site has downgraded user growth for the social giant in the two countries accordingly.

Facebook is denying that it misled MPs by claiming it only knew of Cambridge Analytica's misuse of data when "The Guardian" reported it at the end of 2015, the paper reveals. Damian Collins, the chair of the committee investigating the scandal, sought clarification whether this was true when Facebook's staff had previously raised concerns over the company's use of personal data.

Just six years after Yahoo paid more than a billion dollars to buy Tumblr, it has now been sold for an undisclosed sum -- believed to below $20m and possibly as low as $3m, according to "The Telegraph." The blogging site, which is popular with young internet users, is now owned by the parent company of Wordpress.

The bosses of more than 50 leading British retailers have written to the Chancellor to ask that he help save the high street by reexamining business rates which put stores at a huge disadvantage compared to online competitors. "Sky News" reveals the action was taken a day after it was revealed that one in ten high street stores currently lie empty.

Sports marketing experts are telling "Campaign" that Anthony Joshua's decision to stage a rematch against Andy Ruiz Jr in Saudi Arabia is a big mistake, considering the country's human rights record, which some are claiming it is intending to "sportswash" with this world title boxing match.

Unnamed media sources are telling "Campaign" that they estimate "Love Island" would have earned ITV around GBP77m in advertising revenue this summer, with the average 30-second spot costing GBP45,000.

According to "Marketing Week," Kraft Heinz believes it has spent too much on marketing costs the public never sees, such as agency fees, and not enough on creative and innovation that they do see.

After an auditor raised questions over the veracity of its accounting procedures, M&C Saatchi has recalculated its books, taking a GBP6.4m hit in an unscheduled trading update, "Campaign" reveals.

MediaMonks, owned by S4C, has acquired influencer agency IMA. "Campaign" reveals that the Amsterdam-based firm works with Heineken and Booking.com.