New York City-based Greatist, an online publication and media brand that focuses on health and wellness content, has raised $4.5 million, bringing its total investment to $8 million. Floodgate led the round, with participation from Strauss Zelnick, Andy Russell, John Gardner, David Pecker, and Startup Health. Previous investors including RiverPark Ventures, Vayner/RSE, Jon Miller, Ramit Sethi,...