Study: When it comes to influence, bloggers beat friend lists

CNET News: "Facebook likes to trumpet the value of 'trusted referrals'--recommendations and ads with the endorsements of members of your friends list. But a new study from Jupiter Research, commissioned by analytics company BuzzLogic, says that consumer purchases are more likely to be influenced by what they read on a blog versus what their social-networking rosters recommend."

Shakeout Threatens to Thin Out Web-Ad Brokers

WSJ.com: "More than 300 online-ad networks have cropped up over the past couple of years, making the business of brokering ads on the Web one of the most popular -- and crowded -- niches on the Internet.

But with the nation's economic woes deepening, there are signs of a shakeout as growth in online spending starts to slow and venture-capital funding begins to dry up."

YouTube tosses 10-minute limit to show full TV episodes

USATODAY.com: "Forrester Research analyst James McQuivey says advertisers have been reluctant to spend big dollars on YouTube. Instead they prefer the more targeted ad approach on sites such as Hulu and ABC.com, where people come to watch specific shows.

'If you're an advertiser, where will you put your money?' he says. 'In front of content you're not sure about, or behind a series like 30 Rock, a known brand?'"

Study: Huge Potential SEM Spend Untapped

Search Engine Land: "A new JupiterResearch, Marin Software-sponsored study has found some surprising things about large-search marketers and their SEM spending: more than 90 percent would spend as much as 22 percent more — if they had better tools and technology to manage complex campaigns. That potentially represents hundreds of millions — even billions — of dollars that are untapped by the industry because technology isn’t keeping pace with the needs and demands of the industry’s larger marketers."

Interview with Twitter CEO Jack Dorsey

I Want Media: The CEO of the hit microblogging service aims to take Twitter mainstream -- and find a business model. But Twitter won't ever replace blogs or newspapers, he says. "We will always need a medium that carries more words. ... Twitter is very good at immediacy."