Promoted tweets used by such brands as Dell and McDonald's to make sure their posts are well-read will show up soon in the main page of Twitter's iPhone and Android applications.

As well, the application has been made available in the UK, UAE, Australia and New Zealand by ZEE New Media, the digital arm of ZEE Network. It will launch in the USA before the end of the quarter.

A study of smartphone users in Britain, France, Germany, Japan, Spain and the United States shows that advertising is changing the way people interact with a brand through mobile search, with six in ten launching search after seeing a mobile ad.

Illicit drugs and prescription medicines are being ordered online, reports the International Narcotics Control Board (INCB), which monitors the implementation of U.N. drug control conventions.

The digital sports rights company has reported revenues up 53% to GBP103m, although pre-tax profits were halved due to charges related to acquisitions and listing on the London Stock Exchange.