Twitter

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MIT graduate student Maia Majumder applies mathematics to infectious disease data. In the past year, she has tracked the spread of Ebola and Middle East respiratory syndrome. Majumder, 25, uses Twitter as a professional tool to discuss her research and to interact with colleagues around the world. That has gotten her noticed, leading to a fellowship at Boston Children’s Hospital and a contract for an academic book she will co-edit. Majumder shared her digital habits with The Download.More →

Millions of Americans battle anxiety disorders and depression, conditions that sap social ties and leave sufferers vulnerable if they lack a viable support system. Now, a group of researchers with ties to the Massachusetts Institute of Technology are creating a private social network where people can anonymously share their daily struggles, and also find kinship.

While the forum won’t replace professional treatment or therapy, Robert Morris, who created the system as a graduate student at the MIT Media Lab, said it does show promise as a reliable support for people battling stress.More →

Social media is big business — and it should get even bigger as traditional ad spending continues moving to digital channels.

One of the beneficiaries of that shift is Nanigans. The five-year-old company, based in Boston, helps advertisers get the most out of their marketing budget by allowing them to target their digital ads and see how well they perform across hundreds of millions of social-media users.More →