Brafton has reported that the mobile video platform is gaining ground, and a report from Rhythm NewMedia indicates that internet marketers can't afford to ignore this channel.

Rhythm is a mobile video ad network, and the company reports that it served more than 535 million mobile video content views in Q4 2010. Videos served through this mobile network saw 26 percent monthly gains in viewers last quarter, which speaks to the overall rise of the market.

Investing in mobile video content could give a big boost to brand awareness; viewer retention rate after 60 seconds was 81 percent, as opposed to just 55 percent online. Plus, the company reports that its partners now include more than 200 Fortune 500 companies, suggesting that big brands' participation will help advance the platform.

Those looking to create video ads should consider Rhythm's finding that in-app videos offer more unique viewers than the broader mobile web. The number of video views per unique user is more than five times higher in apps.

Brafton recently reported that application advertising may become a mobile marketing must. Studies show that mobile app stores grew by leaps and bounds last year.