Former employees said Amazon seemed happy to mine Goodreads for its user-generated data and otherwise let it limp along with limited resources. In Amazon’s more than 20-year history, the company has made dozens of acquisitions, and it is not unusual for it to try to cheaply acquire properties in markets that it wants to dominate, only to let them languish. Until recently, Amazon owned Book Depository and camera-enthusiast favorite DPReview, and it still operates discount marketplace Woot, collectibles website AbeBooks and movie database IMDb.