The five two-way speakers each hold two three-inch drivers and a one-inch tweeter, while each of the two 70 watts-per-channel active subwoofers has a roughly eight-inch cone.

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In 2003, Stanford University spin-out company Cooligy showed off its Active Micro-Channel Cooling (AMC) technology which allowed fluids to circulate through hundreds of tiny channels on the upper surface of a chip.

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Stop worrying about being active in every possible channel where your target customer might be.

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Like many of the musicians on our list, Shakur is most active on YouTube where his channel attracts more than 100, 000 hits per day.

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The world No. 103's YouTube channel is the second most popular of any active athlete, surpassing that of NBA superstar LeBron James, according to the PGA Tour report.

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Executives, millionaires, venture capitalists, angel investors and recruiters are there and are much more likely to be active on LinkedIn than on any other social media channel.

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Tom Loosemore, head of 4iP, Channel 4's Innovation fund, said he suspected that active citizens and frustrated users could become a big catalyst for change in public services.

BBC: Social media 'could transform public services'

According to the ETF Finder at ETF Channel, COP makes up 6.34% of the Active Mega Cap Fund ETF ( AMEX: PMA) which is trading higher by about 4.6% on the day Thursday.

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According to the ETF Finder at ETF Channel, DFS and APC collectively make up 2.06% of the Active Mega Cap Fund ETF (PMA) which is trading lower by about 0.2% on the day Tuesday.

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