Online art marketplace Artsy raises $50M at $275M valuation to double down on auctions

The market for buying, selling and learning about visual art online is getting a significant boost today. Artsy, the New York startup that has positioned itself as the go-to place for all things arty — a platform for people to learn about visual art online as well as explore opportunities to buy and sell work — has raised $50 million in funding. The company is not disclosing…