Media roundup: Coke, Premier, Fipp, Groupon, Tesco

We bring you the buzz from the wider media sphere, across the world and across the web. This week: Coke launches new bottle; Premier cuts marketing spend; Fipp highlights innovative magazines; Groupon changes practices; Marketers discuss Tesco chief's exit; Seven moves to wind-up Branson iPad mag.

Coke launches first new bottle size in almost 20 years
Coca-Cola is launching a pocket-sized bottle across its three cola brands this spring, marking the first bottle launch since its 500ml bottles went on sale in 1993.

Premier Foods confirms 19% reduction in marketing spend in 2011
Premier Foods, the maker of Mr Kipling and Batchelors products, has revealed that it reduced its consumer marketing spend by 19% last year to £25.6m and has now vowed to draw a line under a difficult 2011.

Magazines continue to innovate, highlights Fipp report
From 3D covers and "intelligent photos", to talking ads, "click to buy" technology and augmented reality, magazine publishers around the world continue to innovation as highlighted in the latest Fipp report.

Groupon agrees to change practices and says sorry after OFT investigation
Groupon has signed undertakings to "change its practices to comply with the law" and has apologised for letting customers down, after a three-month investigation by the Office of Fair Trading.

Industry verdict on Tesco chief Richard Brasher's shock exit: 'Tesco has forgotten what made it grow in the first place'
After news that Tesco's UK and Ireland chief executive Richard Brasher will leave the business in July, industry commentators assess what the supermarket needs to do to turn its fortunes around.

Branson's iPad mag in legal dispute
The publisher of Project magazine, Virgin Interactive Publishing (VIP), has received a winding-up petition from Seven Publishing, a former publishing partner in the venture.