Google purchase
Google, the internet search group, reinforced its determination to expand beyond its core search business with a deal to buy dMarc Broadcasting, a radio advertising company, for up to $1.2 billion (£680 million) over three years.
Intel shares hit
Intel shares tumbled 8.8 per cent in after-hours trading after the American computer chip maker reported fourth-quarter sales below its previous guidance and forecast first-quarter sales levels that fall short of Wall Street expectations.
Blow for Yahoo!
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Yahoo!, the US internet group, disappointed Wall Street with lower than expected fourth-quarter results. Its shares fell nearly 13 per cent in after-hours trading. IBM delivered better than expected fourth-quarter profits of $3.2 billion (£1.8 billion).