As part of a broader effort to help brands track campaign performance across channels, Facebook is rolling out a marketing mix modeling (MMM) portal where measurement partners can gather information directly from Facebook, Instagram and Audience Network on their clients' behalf.

Ahead of Facebook's fourth-quarter earnings report on Wednesday, analysts are reflecting on the tech giant's recent successes and failures. Among other issues, analysts say, Facebook is struggling to monetize its messaging services (like WhatsApp and Messenger) as quickly as was once expected.

Along with the continued strength of YouTube, Alphabet on Thursday credited mobile search with driving fourth-quarter revenue. Yet analysts are not sure mobile search is necessarily growing the fortunes of Google's parent company.

Twitter users can say "goodbye" to their Moments tab. In its place, the social giant is slowly rolling out Explore -- a new tab that, like Moments, will highlight collections of notable tweets curated by Twitter editors.

Facebook's foray into live video has been short of seamless. Users are increasingly broadcasting violent and obscene events, public figures aren't embracing the medium as quickly as expected, and marketers are certainly not yet sold on the idea. Moving full speed ahead, however, the social giant is readying the global rollout of live video on Instagram Stories.

By 2021, U.S. annual mobile ad spending will reach $72 billion, according to a fresh forecast from BIA/Kelsey. That's up from $33 billion last year, by the research firm's reckoning. If accurate, mobile ad spending will see a 17% compound annual growth rate through 2021.

As part of a broader redesign unveiled last week, Snapchat is cracking down on "fake news," click-baiting headlines, and other odious uses of its Discover news service. As such, publishers lucky enough to participate in the Discover service have been put on notice, according to The New York Times.

As Chinese selfie app Meitu begins to gain traction among U.S. consumers, security professionals like Greg Linares are warning them to be wary of the app.

Largely driven by their interest in mobile, 70% of small- and medium-sized businesses plan to up their digital marketing investments this year.

Threatening to upset the domestic smartphone market, Google reportedly plans to bring its Android One phones to the U.S.