With ad dollars flooding into social media and everyone obsessed with social media "influencers," the next step may be actually rewarding people who get other people in their social networks to buy products. That's the thinking behind Yuno, a social shopping e-commerce site that gives people cash back every time someone in their social network sees what they purchased and buys the same (or a related) product.

Facebook passed a major milestone on Monday, when one billion people around the world used the social network, according to founder Mark Zuckerberg, who shared the news in a blog post at the end of the week.

Recently, the digital world has seemed like a crowded job fair, with multiple tech companies waving their resumes in your face asking to be your virtual assistant. The latest entry comes from Facebook, which is throwing its hat in the ring with M, a virtual assistant that (or should I say who?) is currently being beta tested with a small number of users in the Bay Area, according to Wired.

Social media spending is set to continue growing at a fast clip, according to a new quarterly survey of advertising and media agencies conducted by STRATA, a provider of media buying and selling software.

Probably one of the biggest issues facing America today is the fact that college students just aren't having enough casual sex. Thankfully a new mobile social startup, Friendsy, aims to remedy that situation with a Tinder-style app that is open exclusively to users who have a .edu email -- just like Facebook, before it flung open its doors to the unwashed masses.

The falling tide sinks all boats, the converse of the old saying goes. As stock markets around the world swooned on Monday, social media stocks were hardly immune to the overall trend.

Social media has become a vital part of parents' support networks, and mothers in particular turn to sites like Facebook, Instagram and Pinterest to share parenting-related content, seek advice, and commiserate, according to Pew. The results are based on a survey of 2,003 U.S. adults, including 1,235 parents with children under the age of 18.

Growth has slowed for both Facebook and Twitter in the U.S., at least in proportional terms, per a Pew study. Some other, newer social networks are continuing to grow at a faster clip, such as Pinterest.

The Odyssey, a social content platform that employs a crowd-sourced approach to discovering writers and exposing their work to new audiences, has hired Lisa Shalett as chief marketing officer.

Once upon a time, in those innocent early days of social media, Facebook has ambitions of being a blogging platform in addition to the cool new place for everyone to post baby pictures. Then everyone kind of forgot about blogging, including Facebook. But then everyone remembered blogging again, and Facebook has apparently remembered its ambitions here as well.