Google was ranked the world's most powerful brand for the second time, after the firm dominated the online advertisement industry across the globe.

According to results from a survey by a research company, Millward Brown, which included more than one million consumers and 50,000 brands, gave Google the top spot with a brand value of $86 billion.

In 2006, Google was trailing in the seventh place when Microsoft Corp. was in the lead.

Google's 2007 revenue was $16.6 billion with much of it coming from advertisements.

Google has tried to expand its business in China and other fast growing economies, a move that may have helped the internet giant increase its international revenue which accounted for more than half of sales last quarter.

Google's search engine is currently trailing China's popular

Apple Inc. ranked seventh, being among the top 10 for the first time while Research In Motion's BlackBerry e-mail phone ranked 51st.

Some of the technology companies that were involved in the survey included Google, Microsoft and Apple, which accounted for 28 of the top 100 brands in Millward Brown's survey.