Both Facebook and Twitter have recently announced that they’re going to begin sending advertisements to mobile devices, according to an article on the New York Times blog. These devices use dozens of algorithms that figure out what website users like, do not like and may like but don’t know about. Additionally, these preferences can be segmented by demographics.

Last year alone, advertisers spent $1.45 billion on mobile ads in the United States, which was up 89 percent from the year prior. This is projected to grow another 80 percent in the year to come.

For advertisers, this trend means access to whole new realms of mobile data about their consumers habits and lifestyles, including location, phone use schedule, type of mobile device, spending habits, etc.

With this level of investment and statistical reward, mobile advertisers should get working on 2’’x4’’ ads now!