Google has topped a list of the world's most powerful brands, with new research estimating its value to be $86bn (£43bn).

WPP-owned research company Millward Brown puts Google at number one in its annual top 100 global brand power list for the second year in a row with a 30% year-on-year increase in its value.
Google beat General Electric to the top spot, with the NBC Universal owner's brand value estimated at $71.4bn.
The next most valuable brands are Microsoft at $70.89bn, Coca-Cola at $58.2bn and China Mobile at $57.2bn, according to Millward Brown.
""Google's rank has been driven by fantastic financial performance and equity value,"" said Peter Walshe, the global account director at Millward Brown.
The top five remained unchanged year-on-year, with each company recording an increase in brand valuation by between 15% and 39% compared with 2007.
Apple was the biggest mover in the top 10, and a new entry, moving up nine places to rank seventh, with a massive 123% increase in brand value to $55.2bn. ""Apple's 123% rise has proved to be from a mix of a slue of innovative products such as the iTouch, iPhone, Leopard and computers for which consumers have given the brand a lot of credit,"" said Walshe.
Fast food giant McDonald's brand value grew by 49% - in eighth at $49.49bn, while Nokia was up 39% and in ninth at $43.9bn.
(Source: Guardian)