NEW YORK - IT WAS a where-were-you moment in a digital age: Michael Jackson's death was not learned from a fatherly TV news anchor. Instead, the news first spread online.

Some of the initial reports from various outlets were confusing: Was Jackson still alive? Was he in a coma? They spread like wildfire across news sites, social media networks and Twitter.

WASHINGTON - TENS of thousands of applications are available for Apple's popular iPhone and the iPod Touch but a report released on Thursday indicates that only a few are likely to attract widespread usage.

Mobile advertising platform AdMob tracked the popularity of more than 2,300 applications for the iPhone and the iPod Touch used by the more than 15 million members in its network.

CHICAGO - NEARLY half the HIV-positive US adolescents and young adults are unaware of their infection, and less than a quarter of sexually active high school students are tested for the virus, US health officials said on Thursday.

Only 22 per cent of sexually active high school students are tested for human immunodeficiency virus, the US Centres for Disease Control and Prevention said in an analysis using data from a 2007 survey of students in grades 9-12 (ages 14-18).