Viadeo, the other social network for business professionals, announced this morning it has landed $32 million in funding from a host of blue-chip investors as it looks to expand beyond its stronghold markets of France and China. It currently has 45 million users and is looking to grow share in Latin America, Eastern Europe, Africa and beyond.

Last month, The Guardian delivered a “seismic” piece of news that got publishers everywhere to rethink the value of social traffic when it announced that Facebook had overtaken Google as its primary source of traffic. Today, we have another example of Facebook’s traffic-driving prowess, this time in the e-commerce sector.

In November, we told you the latest forecast – that social network advertising would top $10 billion by 2013 and that Facebook was on its way to pull in over $5.5 billion this year in ad revenues. A new survey from ad buyers suggest that those figures are too modest, that the demand for social media ad buys could blow away all previous predictions.

Dutch airline KLM has introduced a helpful new service – ‘Meet and Seat’ – that allows passengers to share information from their Facebook and LinkedIn profiles with other flyers, and thereby choose a seatmate accordingly. Users can edit their profile and photo, and have from 90 days to 48 hours before departure to choose a flying friend (or find a better one – ouch)

So says a new infographic courtesy of Imbue Marketing, which combed the Net to breakdown the user profiles, their likes and habits of the biggest social networks today including YouTube, Pinterest, Instagram, Facebook, Twitter, LinkedIn, Foursquare and Google +.

Last month we reported on the slowdown-defying market that is social media advertising using the latest multi-billion-dollar projection to come out of the U.S. Today, there’s fresh detail on the global picture, and again the numbers paint a rosy picture. It’s particularly good news if you happen to be a member of Facebook’s ad sales team.

A few weeks ago, print publishers added to the pessimistic chorus of an imminent ad slump when The New York Times reported dismal Q3 numbers. That seems like a distant memory today as a new forecast predicts yet more bullish growth for one brash new sector – social networks.

LinkedIn’s $9 billion stock market debut last month may have stunned many on Wall Street, but it couldn’t have been much of a surprise to the denizens of Sand Hill Road. In the months prior to the LNKD IPO, venture capitalists had been placing huge bets on social networks of all shapes and sizes.

As I type, the LinkedIn (LNKD for you day-traders out there) IPO still has yet to open for its inaugural day of trading and already tech and finance journalists are buzzing about what this will mean for investors, every-day business managers and the entire social media IPO pipeline, some of it silly speculation, some of it precious nuggets of insights.

Last month we went in-depth looking at the trends, activities and passions driving the U.S. online market in 2010. Today, we look at Europe as comScore publishes its 2010 Europe Digital Year in Review. Like in the U.S., there were some big winners and losers.