The keys to successful email marketing

Confirmation emails, calls to action and personalized, relevant content are vital to an email marketing strategy. A recent study found 89% of marketers use email as their primary lead-generation tool.

Study: How students' age affects achievement

The age when students start school could affect their academic performance through college, according to a study released by the National Bureau of Economic Affairs. Researchers found that older students had about a 40-point edge on the SAT and were more likely to enroll in college.

Juncker: EU can't count on US for defense forever

The EU must assume greater responsibility for defense, European Commission President Jean-Claude Juncker said. "It becomes clear that we cannot, in the long term, rely on American defense support," he said.

Walmart grows Uber grocery delivery partnership

Walmart expanded a grocery delivery test with Uber to Dallas and two Florida cities Monday, after launching the pilot in Phoenix in 2016. With more than 53 e-commerce-ready stores, the Dallas-Fort Worth market is the retailer's biggest for online grocery sales.

Study: Telemedicine may lead to more office visits

Researchers from the University of Wisconsin found a 6% increase in office visits among providers that have adopted electronic visit programs because many doctors feel the need to see telemedicine patients in person, causing them to spend an additional 45 minutes on those visits. The study, based on health care encounters between 90 providers and more than 140,000 patients over five years, said e-visit programs also reduced the number of new patients seen by providers each month by 15% and did not contribute any "observable improvement in patient health" between users and nonusers.

29M+ Snapchat users are watching NBC News on Discover

NBC News' first daily show on Snapchat Discover has attracted an audience of more than 29 million unique viewers in its first month, NBCU reports. Sixty percent of those viewers are younger than 25 years old, and more than 40% of viewers are tuning in for at least three shows each week.

Remodeled Target hints at plans for future changes

Target has completed a $10 million makeover of its downtown Minneapolis store, and the new look reflects the retailer's focus on the shopping experience in the digital age. Specialty lighting replaces fluorescent bulbs, beacons let shoppers open in-app maps to navigate the store, and the grocery department sports a new upgraded design.

Anonymous pledges "Day to Denounce" for white supremacist sites

Members of the group Anonymous have released a video indicating that they will launch cyberattacks against white supremacist websites on Friday as part of a "Day to Denounce."

Lawmakers investigate possible shadow pricing of MS drugs

Reps. Elijah Cummings, D-Md., and Peter Welch, D-Vt., sent letters to the heads of seven drugmakers asking about dramatic price increases on multiple sclerosis drugs. A study published in Neurology found evidence of so-called shadow pricing, or raising prices when competitors do.

Niche streaming services aim to stand apart from Netflix

Smaller streaming services are setting themselves apart from Netflix by focusing on specialized content. While Walt Disney is the latest to announce plans for its own streaming platform, services such as Shudder, Crunchyroll and MUBI are already competing with major players including Netflix and Hulu, because "[f]ans feel they can go deeper in contrast to a big service," PwC's Christopher Vollmer says.

Study: Underground Boston rail extension would cost $4B to $6B

A 3-mile underground rail extension planned in Boston could cost between $4 billion and $6 billion, according to a recent study by students and faculty at the Harvard University Kennedy School of Government. A state-sponsored study is being conducted by Arup USA.

US oil rig count falls again

US oil drillers idled five rigs in the week ended Friday, bringing the total number of oil rigs to 763, according to Baker Hughes. The rig count decline for the second time in three weeks signals a reversal of the drilling rebound in response to low oil prices.

New TSA administrator visits Boston airport

David Pekoske, the new administrator of the Transportation Security Administration, visited Boston's Logan International Airport on Thursday to introduce himself. "I find that the folks in TSA are very mission-focused," he said.

Marriott's "Golden Rule" campaign unites 4 brands

Marriott International is combining four of its brands in an advertising campaign built around the theme of human connection. The venture into category marketing, dubbed "Golden Rule," features the "classic select" SpringHill Suites, Courtyard by Marriott, Fairfield Inn & Suites and Four Points by Sheraton.