Twitter endorsements face OFT clampdown
Watchdog says online companies who did not disclose paid-for promotions by celebrities and bloggers were deceptive
20 predictions for the next 25 years
From the web to wildlife, the economy to nanotechnology, politics to sport, the Observer’s team of experts prophesy how the world will change – for good or bad – in the next quarter of a century
The G2 Quiz of 2010: Charlie Brooker’s quiz
Charlie Brooker has scoured through a whole year's worth of cultural detritus to test your knowledge of what was really important during the last 12 months
US online advertising overtakes print
Digital ad spend in 2010 exceeds that for newspapers for the first time
Black Swan raises the bar with striking and beautiful set of posters
British design studio's adverts for new Darren Aronofsky film echo Polish and Czech posters of the 60s and ballet advertisements of the early 20th century – to impressive effect, writes Paul Owen
Google facing regulatory scrutiny and €45m tax bill in France
The search giant has been warned about abusing its market dominance in search advertising, and also faces a substantial bill thanks to a new French 'Google tax'. By Jemima Kiss
OFT fires a warning shot over sponsored Twitter promotions
Companies sponsoring promotions on blogposts and tweets without disclosing the fact will be alarmed by the Office of Fair Trading's actions
MediaGuardian Review 2010: Advertising
Television advertising grows and internet ads surge as industry picks up. By Mark Sweney
Google faces European Commission probe that threatens whole ethos
Investigation into claims the search engine favours its own products and which may curb innovation. By Charles Arthur
BFI gets Halas & Batchelor animation archive
Murray Mints TV ad and Animal Farm film among Halas & Batchelor gems given to institute
Google tweaks algorithms to suppress retailers who profit from bad reputation
A New York Times story about a spectacle reseller horrified the Googleites - so much so that they've rushed in a fix that should mean a bad reputation won't get a high ranking. Unless you're a politician..
EU to launch Google search investigation
Anti-trust inquiry follows allegations that tech giant abused its dominant position in the search and advertising market. By Mark Sweney
Apple’s iAd to launch in UK and Europe
Mobile advertising platform rolls out with commercials from clients including Unilever, L'Oréal, Renault and Louis Vuitton. By Mark Sweney
Twitter says sorry to third-party developers, but keeps on encroaching on turf
Former CEO Evan Williams says it is working with Facebook on interoperation, while rumours grow of new funding round that could value it at $3bn
Seven reasons why US newspapers remain in the doldrums
American media business analyst takes a close look at newspaper businesses and find few reasons to cheer