Leading social media experts ... passive follower metrics over time. Active followers regularly engage, click, and share posts, while passive ones lurk silently. We use this to tweak targeting ...

It was a guess and, for a time, it worked so well that billion-dollar startups were born out of boozy media parties. With new metrics created to align “old” and “new” media revenue models, the ...

A survey led by researchers from the Center for Quantitative Health at Massachusetts General Hospital and Harvard Medical ...