Following are findings from recent studies on marketing and advertising-related topics. For a more in-depth look at these subjects, visit our sister site, MarketingCharts.com.

Mobile Video Ads Have Higher Engagement Rates

Mobile video ads have a 3X higher engagement rate than online video ads, according to Mobclix's August index. It also found that impressions on the Android platform have grown 45% in the last 3 months and the average CTR on mobile apps is .67% versus .17% on the mobile web.

CTRs for Mobile Ads Vary Depending on Format

Completion rates for interactive pre-roll video ads are 88% in the Rhythm mobile advertising network, which is better than both online video and television, according to its Q2 2010 mobile video advertising metrics.  Average click through rates are high, but can vary widely. For instance, for full-page ads, the average CTR was 6.2% with a range of 2.4% to 11.2%. For app launch ads the average CTR was 7.5% with a range of 3.2% to 12.9%. For pre-roll the average CTR was 1.3% with a range of 0.8% to 2% and gor banner average CTR was 0.4% with a range of 0.2% to 1.4%.

One-Third of Mobile Response Ads on TV Get Response

Among those who noticed a mobile response ad on TV, one third responded, with Asians, Hispanics and adults ages 35-44 the most likely to use their mobile phone to respond to a TV ad, according to the Mobile Marketing Association's newly-released June 2010 U.S. Mobile Consumer Briefing. Also, response was highest in the media outlets with the lowest ad awareness: At least half of those who noticed mobile response ads in the cinema, in a print newspaper, in a print magazine or through direct mail had responded.