The Australian government is to post on YouTube images of so-called boatpeople being turned away and sent to Malaysia, in an effort to deter asylum seekers. The video will show arrivals at Australia's offshore detention centre on Christmas Island being expelled and boarding aircraft. Asylum seekers remain a politically sensitive issue in Australia.

The British Library is making digital copies of more than 40,000 classic books available for the iPad. Texts appear in fully digitised form, complete with original page markings and drawings. All of the works date from the 18th and 19th centuries and include novels, poetry and historical accounts. The collection was originally digitised in a project funded by Microsoft.

Some governments are using advanced technologies to chill free expression, to stifle dissent, to identify and arrest dissidents," Deputy Assistant Secretary Baer said. "Through our diplomacy and through direct support for embattled activists worldwide, we are helping people stay one step ahead of the censors, the hackers, and the brutes who beat them up or imprison them for what they say online.

South Africans and private institutions have been “generously” donating money and other resources to relief efforts in East Africa. South Africa recently mounted a media blitz to raise money for a government-established relief fund, as well as for medical supplies and non-perishable foods. The government has tried to widen the reach of the campaign with social media like Facebook and Twitter.

Online, you can so easily find the thousand other people who share your perverted views. You then get a vicious spiral of groupthink, reinforcing the worst kind of ideology...totally divorced from everyday humanity. The real challenge is to work out how we can maximise the extraordinary capacity of the internet to open minds – and minimise its now evident tendency to close them.

Twitter has become the essential tool for following and understanding the momentous changes sweeping the Arab region. It's surprisingly smart and fast -- if sometimes a little too quick on the draw -- and human where other sources feel impersonal. If there is indeed such a thing as a Twitter revolution in the Middle East, it's the way the tool is transforming how the outside world looks at the region.

From the moment he took office, Chávez deployed himself across existing platforms, using every available communications resource to present himself, his ideology and his policies directly to the public. Now, as his idiosyncratic rule runs up against limitations imposed by serious health problems, Chávez has found that...social media, is a most useful tool.

Social media allowed an ''unprecedented'' two-way exchange of information between the public and those given the task of preparing for and responding to major events such as earthquakes, floods and infection pandemics, said researchers. The technology allowed officials to ''push'' information to the public while at the same time ''pulling'' in valuable data from bystanders.