In December 2009, Facebook users averaged 246.9 minutes on the site compared to 112.7 minutes on MySpace and 24.3 minutes on Twitter.

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Facebook currently employs about one engineer for every 1.2 million users.

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In America more than 10,000 baby-boomers will become eligible for Social Security and Medicare every day for the next two decades.

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Only about 400,000 more Americans were employed in December 2009 than in December 1999, while the population grew by 30 million.

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An average of 247 billion email messages per day were sent in 2009.

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Of the 350 million people on Facebook, 50% log in every day.

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27.3 million tweets are recorded on Twitter per day (November, 2009).

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The average Internet user in the US watches 182 online videos in a month.

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2.5 billion photos are uploaded to Facebook each month.

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In 1900, about 28 percent of the 4,000 plus cars produced in America ran on electricity.

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There are still 10,000 mainframes in use worldwide and sales of IBM mainframes have brought in about $ 3.5 billion a year, on average, in the past decade.

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During the iPad launch, Apple announced it had recently sold its 250 millionth iPod.

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In all, 68% of Americans are either obese or overweight - making Americans more likely to be overweight than to pay federal taxes.

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China is the world’s largest market for mobile telephony, with over 700 million subscribers. India is adding the biggest number each month: 15.6 million in March 2009 alone.

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The average Puerto Rican spends 1,875 minutes a month talking on the mobile phone - the highest of anywhere in the world.

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In Europe, mobile subscribers typically spend about $36 a month, a figure known in the industry as the average revenue per user (ARPU). In America that figure is $51 and in Japan $57. But in China it is only around $10 and in India less than $7.

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In Kenya, roughly $ 2 million is transferred through the M-PESA mobile payment system each day, with an average amount of $20.

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In 2002, the average Japanese mobile user spoke on it for 181 minutes each month, about the global norm. By early 2009 that had fallen to 133 minutes, then only half the world average.

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In early 2000, an average mobile phone user spoke for 174 minutes a month. By early 2009 that had risen to 261 minutes, which suggests that humanity spends over 1 trillion minutes a month on mobiles, or nearly 2 million years.

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In the year to March 2009, an additional 128 million mobile users signed up in India, 89 million in China and 96 million across Africa.

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In 2000, developing countries accounted for around one-quarter of the world’s 700 million or so mobile phones. By the beginning of 2009 their share had grown to three-quarters of the total, which by then had risen to over 4 billion.

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The average UK TV viewer sees more than 40 TV ads a day, 30% more than in 2000 – depsite the advent of advert-skipping technology such as Sky+.

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Legal film downloads in America accounted for just $250 million in 2009.

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American universities churned out an average of 948 economics PhDs each year between 2006 and 2008.

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In the year ending March 2009, Toyota made a net loss of ¥ 437 billion ($4.3 billion) - its first since 1950.

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Nokia's share of industry profits fell from 64% in 2007 to 32% in 2009.

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In 2009, China overtook Germany to become the world's largest exporter and its share of world exports jumped to almost 10%, up from 3% in 1999.

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Women earn almost 60% of university degrees in America and Europe.

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In 2007, there were over 10 million people with investible assets of $1 million or more. In 2008, that number dropped to 8.6 million.

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Global defence spending is about $1.5 trillion a year - compared to sales of consumer electronics which are around $700 billion a year.

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Worldwide R&D investment increased by 6.9% in 2008, having grown by 9% in 2007.

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Around 5 million e-readers are expected to have been sold in 2009.

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American men consume 113 percent of their daily recommended calories; American women consume 102 percent.

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Only 5% of European Union companies born since 1980 have made it into the 1,000 biggest companies in the EU by market capitilisation. In America, the figure is 22%.

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In the European Union, women have filled 6 million of the 8 million new jobs created since 2000.

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Revenue for Mozilla, the maker of Firefox, topped $78 million in 2008 - against expenses of just under $50 million.

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Last year, about 3.8 million cheques were written every day in Britain, compared with a peak of 10.9 million in 1990.

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At its peak in 2007, the world art market was worth some $65 billion - double the figure from 5 years earlier. Since then it may have come down to $500 billion.

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Heathrow currently handles 480,000 flights a year.

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Yahoo Mail has 106 million monthly users worldwide.

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Online sales currently account for 6% of all retail sales in America, up from 5% in 2008. The comparative figure for Britain is 4%.

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The number of dollar billionaires in China actually increased in the past year from 101 to 130.

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