Facebook is the top mobile app, proving that marketers need to create content for the network.

Facebook is the number one mobile app used in the United States, edging ahead of Google Maps, according to comScore’s “Mobile Metrix” report. Because of Facebook’s popularity and usability on smartphones and tablets, social media marketing efforts should focus on delivering highly relevant content to friends and followers on the top-performing site.

Even if a brand does not have its own mobile website or app, it can reach the intended audience through the Facebook app, which saw roughly 86,000 unique visitors in December 2012. Campaigns that focus on gaining Facebook Likes, sharing content that could go viral and reaching out to returning and prospective customers via Facebook are good ways to engage mobile viewers. YouTube and and a number of other site’s made comScore’s list, proving that marketers should work on their SEO strategies to ensure that their blog posts get revealed in SERPs while users are on their mobile devices.

Brafton has reported extensively on increased mobile use, showing that companies need to make sure their content reaches on-the-go readers. As more turn to smartphones and tablets to make searches and stay on top of current news, brands may need to act in kind.

Emma Siemasko is a former member of Brafton's editorial team. Emma has experience with blogging, travel writing, industry news, SEO and content marketing. She used to live in South Korea, where she mastered the art of using metal chopsticks.