How much is a single, glowing Facebook recommendation worth to a marketer? Just how valuable is a strong endorsement from a blogger in determining future sales? And just how engaged is the average TV viewer with a popular show with all these distracting networked gadgets, tablets and laptops in the room? Syncapse answers some of these questions in a new piece of research out this week.

If a big brand were to be cast in one of those bitchy teen movies, one set entirely in the world of Facebook, it would be that shunned, unloved character that walks barely noticed down the high school corridor. When it does get noticed he or she will no doubt get doused with a slushie. Why? Because. Teens can be pretty brutal.

Talk about your #winners. Charlie Sheen joins Twitter on Tuesday and already this morning he’s closing in on 1.2 million followers, surely a record for Twitter clout. Right? Let’s take a look.

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.

Last month we looked at growth trends for each of the big social media publishing channels, namely, Facebook, Twitter and blogs. Not all of you agreed with our conclusion: that blogging is an activity that, at best, is leveling off. At worst, it’s an activity in decline. The New York Times is now jumping on this discussion meme, declaring that today’s twentysomethings no longer blog, a further sign that fewer people can find the time.

Twitter admitted in its own research a few weeks back that the typical user has to view a hashtag at least four or five times “before it really clicks.” The message was clear to Promoted Tweets advertisers: ratchet up the Tweets if you want to be seen. Is Facebook any more effective?

Last week, we got a 2010 report card on the Web-based side of the digital economy. Today comScore releases its mobile year-in-review, and it is a completely different story this time around with Asia clobbering us here in the West with an overwhelming majority using their handsets every day to take part in the social web, download content and make purchases via mobile wallets.

2010 was a good year for e-commerce and online advertising, and a great year for Facebook and Twitter. It was another rough year for Yahoo, AOL and email. ComScore delivers its 2010 U.S. Digital Year in Review report, packed with interesting data points that we’ll quickly summarize here.

That’s the big conclusion drawn from the 2011 Edelman Trust Barometer, the details of which were revealed yesterday at the WEF forum in Davos. And where do our friends and peers rank? They are losing ground. Fast.

That’s what we’re wondering today as we analyze the end-of-year numbers for 2010 as it pertains to our favorite online creative/socializing activities. Roughly 26 million new blogs were started last year. Not bad, but nothing compared with the growth happening in other areas of social media. Take a look.