CMO.com

For a category that's become somewhat synonymous with Foursquare, a location-based mobile app that saw 20- and 30-somethings checking in to bars and restaurants in cities in its early days, MyTown's results may seem surprising.

Facebook in July became the number three site for watching online video in the United States, according to comScore.

What's wrong with most research that attempts to measure ad effectiveness? Small respondent size and low response rates for starters, according to an initial report from the IAB.

Star ratings could significantly increase ad CTR by another order of magnitude, provided that the rating is 4 stars and above.

If Facebook can build out a partnership with Amazon, where it can get key pieces of aggregated data back to study how product sales change in relation to social recommendations or ad campaigns, it can build models to show how financially valuable it is on average when a user “likes” a product or brand.

WPP Group, Interpublic Group, and Merkle are among the major holding companies setting up social media units aimed at helping marketers monetize their social media outreach.

A new report gives email marketers insight into email campaign metrics and trends, such as open and click rates, bounce rates and subject line length.

Version 2.0 of Video Metrix, comScore's online video measurement tool, adds new features to address the growth in online video ads, such as new reporting metrics to better evaluate video ads and their reach and engagement within video audiences.

In fact, no other video site or ad network served as many video ads in the month of June than Hulu, according to new measurement data from comScore.