The 2012 Super Bowl saw a peak of 12,233 tweets per second

In the final three minutes of the Super Bowl tonight, there were an average of 10,000 Tweets per second.
— Twitter (@twitter) February 6, 2012

Madonna's performance during the Super Bowl's halftime show saw an average of 8,000 Tweets per second for five minutes.
— Twitter (@twitter) February 6, 2012

The highest Tweets per second #SuperBowl peak came at the end of the game: 12,233. 2nd highest was during Madonna's performance: 10,245.
— Twitter (@twitter) February 6, 2012

Source:  Tweets from the official Twitter account, 6th February 2012

Nearly half of the advertisers in Super Bowl 2012 are using Shazam with their advertising

"Now the company says it’s working with nearly half the advertisers at the Super Bowl, and it’s revealing a few key ones: Viewers of the Toyota ad will be able to use Shazam to enter a contest to win two free Camrys. When viewers tag the Cars.com ad, Cars.com will donate $1.00 to one of seven charities. Pepsi’s ad will feature X-Factor winner Melanie Amaro, and using Shazam on the ad will unlock an extra video. Viewers who tag the Teleflora ad will receive a special offer. And not only is Best Buy using Shazam to offer a $50 gift card to customers who buy and activate a mobile phone in 2012 — it’s actually featuring two of Shazam’s founders in its commercial."

Source:  TechCrunch, 2nd February 2012

Facebook has 845m active users

"As part of its initial filing to go public, Facebook has just revealed some new user numbers that illustrate just how big it is.
It had 845 million monthly active users and 483 million daily active users as of December, for year over year growth of 39% and 48% respectively. Mobile is also now half the user base, with 425 million monthly actives. Some other stats, which are a bit more vague: 100 billion friend connections as of the end of last year, and 2.7 billion Likes and Comments per day during the last three months of the year."

Source:  TechCrunch, 1st February 2012

Earlier - Most recent full stats (800m in Sept 2011)

Google's mobile search volumes doubled Y-o-Y in December 2011

"Google’s lead product manager for mobile search ads, Surojit Chatterjee, tells us that in December 2011 mobile search ad request volume was more than twice as high as it was in December 2010. Mobile search in general has grown five-fold worldwide in just the past two years, which is a rate comparable to the early days of desktop Google Search, he adds.
Chatterjee says that quality of search ads is increasing thanks to some of the new factors being considered in mobile search ad rankings. For example, mobile web-optimized sites are now ranked higher. Since August 2011, Google has seen more than a 50 percent increase in the number of AdWords advertisers with a mobile optimized sites."

Source:  TechCrunch, 1st February 2012

LivingSocial made a net loss of $588m in 2011

"LivingSocial’s financial results for the past year were reported by Amazon today, revealing that the company continues to trail behind Groupon by a wide margin.
Amazon, which has a 31 percent stake in the second-largest daily deals company, released the figures as part of its quarterly filing today with the Securities & Exchange Commission.
It said LivingSocial’s 2011 net loss totaled $558 million on revenues of $245 million."

Source:  AllThingsD, 1st February 2012

Facebook accounts for 28% of online ad impressions in the US

"Ahead of a rumoured IPO as early as tomorrow, Facebook’s position in the ad space has been boosted by comScore data that shows its share of US ad impressions grew to 27.9% in 2011.
This is up from 21% in 2010 and means Facebook has been ranked number one in comScore’s display ad impressions category for the past three years.
Despite its well-publicised woes Yahoo is second on the list with 11% of the market, while Microsoft, Google and AOL trail with less than 5% each.
Unlike the other companies on the list Facebook is almost totally reliant on banner ads to bring in revenue."

Source:  Data from comScore, reported by Econsultancy, 31st January 2012

"Several hundred" YouTube partners made more than $100,000 in 2011

"A Google spokeswoman says that "several hundred" of its partners made more than $100,000 in 2011, up 80% from the "couple of hundred" partners who made more than that in 2010. YouTube partners have also increased to 30,000 in 2011 from 20,000 in 2010, says Tom Pickett, YouTube's global director of content, operations and online creators."

Source:  Wall Street Journal, 2nd February 2012