Being a great social curator boils down to helping your audience stay informedThe best art curators know which artists will boost their cachet, which works will be solid sellers, and what pieces are likely to generate buzz. Social content curation—the act of cherry picking media (articles, videos, photos) to share on pinboard-style networks like Pinterest and Scoop.it—requires an equally comprehensive understanding of audience. What’s the difference between a Pinterest page that’s on fire with user engagement and one that’s slower than a sloth? A mix of fun, shareable content specifically tailored to a narrow audience. We asked Jim Spellos, tech guru and president of Meeting U.,?to share his tips for tailoring content that optimizes brand exposure—and sales.What websites and apps are emerging as the top curation hubs?Pinterest is the top one. There’s Paper.li and Scoop.it,