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Google is expected to report a second straight drop in advertising revenue, extending a rare decline as the company battles economic uncertainty and tries to capitalize on recent advances in artificial intelligence. Alphabet Inc., Google's parent company, is expected to report $53.7 billion in ad revenue for the first quarter, a drop of 1.8% from the same period last year, according to the consensus estimate from analysts surveyed by FactSet. That would be the third drop in ad sales since Google became a public company in 2004, and the second consecutive quarterly decline following a 3.6% drop in the fourth quarter.

Alexa's got a new gig: home safety. Amazon today introduces Alexa Guard, a free feature that uses the microphones of the Amazon Echo speakers to listen for the sounds of smoke and carbon monoxide alarms or breaking glass. Should the personal assistant hear any of those, it will send text alerts to your phone. Amazon says it's introducing the feature to "help you keep your home safe." Amazon says that security devices, such as the Ring video doorbell, which Amazon owns, or ADT Pulse, which it doesn't, can work with Guard in that Alexa will send the alerts to the security provider. Additionally, Alexa can be programmed to have smart, connected lights turn on and off remotely when you're out "to make it look like you're home while you're away," says Amazon.

One Drop, a leader in the development of digital therapeutics solutions for people with diabetes, today announced the launch of Blood Glucose Prediction and Automated Decision Support. Through these new features, the One Drop Mobile app will provide users: (1) blood glucose "forecasts" up to 12 hours into the future; and (2) behavioral recommendations based on those forecasts, thereby empowering users to manage diabetes proactively and reduce the risk complications. Through One Drop's predictive analytic capabilities, people with diabetes will now be able to receive actionable insights into how their behavior (diet, physical activity, etc.) affects their blood glucose levels, without any intervention from a health care provider. The app will simply display insights for the user as they become relevant. Blood glucose predictions come from One Drop's machine learning models, which are powered by over 1.1 billion data points collected by more than 860,000 One Drop Mobile app users worldwide.

People used to dream about robot secretaries. Futurists imagined a world where computers obeyed our every command. When the Amazon Echo hit the market, that dream became a reality: Alexa was obedient, personable and all-knowing. She could carry out a myriad of basic tasks, with a personality as professional and unflappable as a human assistant. This year, Echo is more popular than ever, and despite competition from Google, Amazon still dominates 75 percent of the virtual assistant market.