In its IPO filing earlier this month, Facebook reported revenue of $3.7 billion last year, up 88% from 2010. Not too shabby. But if Facebook were selling out all of its ad inventory, its 2011 revenue would’ve been closer to about $10 billion. That’s according to some back-of-the-envelope calculations by Simon Mansell, CEO of Facebook marketing agency TBG Digital. How did he arrive at that estimate? Here’s the math, based in part on data from TBG’s quarter report Facebook advertising report (drawing on a 300 billion impression sample size) and some informed guesswork: -First, Facebook says it serves 798 pages …

Had enough of new streaming services? Make room for yet another from Comcast's Xfinity digital videobrand. The Xfinity Streampix service will launch a library TV and movie subscription video-on-demand service for $4.99 a month -- free for triple play Comcast consumers (phone, video, and Internet). Older episodes of TV series and movies are the main point here -- such as "30 Rock", "Grey's Anatomy," "Heroes," "Lost," "Married... with Children," "The Office," "Ugly Betty," and "The Secret Life of the American Teenager." Movies include the likes of "Ocean's 11" and "When Harry Met Sally."

Boston-based Mullen has been named agency of record for U.S. Cellular following a competitive review. The assignment is part of an organizational initiative at U.S. Cellular to "energize the brand and grow the customer base and overall business."

Predictive analytics is about discovering new stuff. But to do that you need to forget about much of your pre-conceived notions about stuff, says Claudia Perlich, chief scientist, m6d, speaking at OMMA Metrics & Research event in NYC. "It's nothing mystical," says Alex Yoder, chief executive officer of Webtrends @yodera. Bill Seely, vp of …

It's no iPad, but the Nook is certainly good for Barnes and Noble's bottom line. For the company's fiscal third-quarter, its Nook business -- across all of its segments, including sales of digital content, device hardware and related accessories -- increased 38% to $542 million.

Confirming earlier reports, Barnes & Noble Tuesday announced it will launch an 8GB version of its Nook Tablet for $199—the same price as Amazon’s Kindle Fire, and about $50 less than the original, 16GB version of the device. The book retailer is hoping the price cut will make it more competitive with the Amazon tablet, which has become the company’s best-selling product and the nearest rival to Apple’s iPad. In connection with the move, Barnes & Noble has also dropped the price of the Nook Color e-reader from $199 to $169. The company has bet big on the Nook …

Meanwhile in Russia, Twitter and Yandex have entered into a partnership that will let the Russian search engine show new tweets in its search results almost instantly. "Twitter will give Yandex access to its so-called firehose of all public tweets," reports Reuters.

As part of a larger effort to appease content owners, Pinterest has released code for sites that wish to block the "pinning" of their content to users' personal "pinboards." Even though the image-based social network drives traffic back to original sources, not all of them like people co-opting their content...

Piling on similarly inflammatory accusations on Apple's behalf, Microsoft claims that Google has been ignoring a privacy safeguard in its Internet Explorer 9 browser, which is meant to help users prevent advertisers from placing tracking files on their computers...

NCM Media Networks, one of the two big players (the other is Screenvision) in U.S. cinema advertising marketplace just announced its first official upfront sales presentation, which not so coincidentally will take place in one of its own venues: the AMC Lowes Lincoln Square movie theater in New York City on May 16.