Google announced the launch of content recommendations for mobile sites via the Google+ Platform. By adding a line of code, webmasters can encourage users to look at more of their articles when they're browsing mobile sites, by delivering recommended (by Google) content based on a variety of factors.
"When you help someone find a great article on your site, you’re not only making them happier, you’re inspiring deeper engagement and loyalty," says Google+ product manager Mario Anima. "That's why today, we're bringing together elements of Google+ and Google Search to suggest the right content from your mobile website, at just the right time."
Anima explains, "For example: Forbes visitors can now more easily discover other Forbes articles based on Search Authorship, signals and other articles with lots of Google+ activity (including +1's and shares). In all cases, recommended content is based on the specific page the visitor is viewing, to boost the relevance of recommendations. And they only appear when people tap for more, so as not to interrupt their browsing experience."
Recommendations will show up regardless of whether users are signed into Google+. When they're signed in, they'll just be more personalized, based on content that was shared or +1'd by people in their circles - not unlike Google's personalized search results.
Documentation for implementation can be found here.