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The web browser is probably the most essential application on your PC; there is no better practical way of staying connected to news, your friends, and most importantly, the lulz. But whether you’re using Internet Explorer or newly minted Chrome, each of today's popular web browsers has different strengths and weaknesses.

Police in London braced for new protests a day after several thousand demonstrators jammed the streets of London’s financial district in a brief but brutal spasm of violence.

Blackwater founder Erik Prince is stepping down as the company's chief executive officer. The company has had a contract to protect U.S. diplomats in Iraq, but last month the State Department said it would not rehire Blackwater after its current contract with the company expires in May.

An unprecedented security operation gets under way ahead of Barack Obama's inauguration as US president on 20 January. Reports suggest more than 20,000 police officers, troops and security agents are involved.

With all the bridges and road closings on Inaugural Day, the problem isn't just about getting people into Washington but getting them back out after Barack Obama is sworn in January 20.