Tumblr on Monday rolled out advertising in its mobile app after announcing plans to do so in March. The blog network launched advertising on the desktop almost a year ago.   Tumblr told Ad Age people using its iOS and Android apps will see up to four ads a day in their streams, with a "sponsored" label and dollar-sign icon in the right corner to set them apart from other posts. However, people can like "like" or reblog ads as they can with any other post. The company plans to extend the …

  Yahoo made a splash last month when it acquired Summly, the startup launched by U.K.-based 17-year-old Nick D’Aloisio. On Monday, the company released an updated version of its flagship iOS app (in the U.S.) that incorporates technology from the Summly app, which was pulled from the App Store at the time of the acquisition.   The Web portal made good on its promise then that the Summly would “come to life through Yahoo’s mobile experience soon.” The new Yahoo app shows Summly-style summaries of news stories which link to full versions of articles. The …

Interpublic Group reported a 2.4% increase in revenue for the first quarter to $1.54 billion and a net loss of $58.5 million, versus a net loss of $45.7 million for the same period a year earlier. Organic revenue growth for the period, which excludes acquisitions and currency fluctuations, was 2.3%. By comparison, Publicis Groupe reported first quarter organic growth of 1.3%, while Omnicom reported growth of 2.9%. The company's organic growth in the U.S. for the period was just 0.5%, versus 4%-plus for both Publicis and Omnicom. IPG said its organic growth outside the U.S. was significantly better at 4.9%. …

The latest version of LinkedIn's app for the iPhone and Android phones will allow marketers to run ads on smartphones for the first time. A spokesperson for the company told Reuters on Thursday that the app will begin showing ads in the app’s news stream as part of a limited test.   The reva mped app is meant to provide a more streamlined experience that makes it easier for users to interact with content via “liking” and commenting features directly in the more visually-focused stream. It also offers more options for customizing features …

Display Internet advertising globally rose 9.9% last year, fueled by a 21.2% gain in Latin America, according to Nielsen’s latest Global AdView Pulse report. Display Internet spending, however, made up just 1.9% of total ad spending in 2012. At the other extreme, TV claimed almost two-thirds of ad dollars.   “With 63 percent of ad dollars being spent to advertise on TV, it’s clear that the medium is widely regarded as the most efficient and effective way to reach consumers, continuing to grow especially in emerging …

Omnicom reported roughly flat net income for the first quarter of 2013 at $205.1 million on a 2.8% revenue increase to $3,398.9 billion. The company posted organic revenue growth in the period of 2.9% worldwide. Organic growth was higher in the U.S. at 4.1% while in countries with Euro currencies an organic revenue decline of 3.7% was recorded. By comparison, Publicis, reporting earlier in the week said its organic revenue growth worldwide was 1.3%, but better in North America where growth was 4.4%. In Europe, Publicis was expecting a decline similar to what Omnicom reported but actually did worse, posting …

Most (98.99% of the shares voting and 77.1% of total outstanding shares) of Arbitron's shareholders voted today to approve its acquisition by Nielsen. The $48 per share cash offer, is pending regulatory approval, and is currently in a second review by the Federal Trade Commission, though Arbitron and Nielsen reportedly are poised to strike a consent decree that would include their willingness to license Arbitron's portable people meter technology to other companies.

Yahoo on Tuesday reported flat growth in the first quarter as the Web portal’s core display ad business continued to lag the broader market. Yahoo posted an adjusted profit of 38 cents a share on net revenue of $1.074 billion.   Wall Street analysts, on average, had forecast Yahoo would earn 24 cents a share on revenue of $1.1 billion.   "I'm pleased with Yahoo's performance in the first quarter. We saw continued stability in our business, strengthened our team, and started the …

Facebook Home may not be coming to iOS, but some features of the software overlay for Android phones are expected to find their way into Facebook’s iPhone app. Unveiled last week, Home inserts a Facebook-focused interface on Android phone screens in place of the familiar grid of third-party apps.   Given the closed nature of iOS, it was unlikely Facebook would be able to extend the software to the Apple operating system as it did on the open source-based Android platform. But in an interview with the Wall Street Journal, COO Sheryl Sandberg said …

Mazda is launching the first salvo of a U.S. campaign via a partnership with Paramount Pictures upcoming "Star Trek into Darkness," premiering May 17.