Nine agency millennials share their approaches to tweeting for both professional and personal purposes in this 2015 article. They detail how they use the platform for work-related tasks like social listening, getting feedback, and offer insights into their online personas. via Digiday.

How many real friends can one person really have? This article explores Dunbar's Number and the theory that there's a limit to the number of meaningful friendships a person can maintain. via Nautilus.

23andMe is again offering genetic health testing with FDA approval, focusing on ancestry and genetic effects on children. via Ars Technica.

JetBlue explores the downsides of being constantly plugged in with their 16-part video series encouraging people to unplug and take a vacation. via Digiday

Rachel Botsman, an expert on the collaborative economy, explores how online reputation systems, where users rate each other, impact behavior in her article, "The Changing Rules of Trust in the Digital Age." via The source of this content is Harvard Business Review.

Chef Marcus Wareing discusses training Bradley Cooper and Sienna Miller for their roles in the film "Burnt." via Bon Appétit.

Frederick Vandenbosch built a futuristic desk with a retractable LCD screen, touch sensors, and a built-in sound system, all powered by a Raspberry Pi. via Hackaday

Niraj Dawar and Charan K. Bagga examine the strategic rationale behind AB InBev's acquisition of SABMiller's brand portfolio and its likely outcome. via The source of this content is Harvard Business Review.

Digital marketers can learn a lot from traditional marketing principles — this article explores how the two approaches can be effectively integrated. via Moz

Learn about 15 helpful Excel formulas, useful keyboard shortcuts, and additional Excel tricks. via HubSpot.

PSFK's advertising secrets report offers insight into industry trends analysis and market data. via PSFK

Launchify for Android puts shortcuts to the apps you are most likely to use next on your lock screen, based on your habits and location. via TNW