The Amazon Kindle e-reader could see greater integration with Goodreads, following Thursday's announcement that the online retail giant was buying the the social book-recommendation site. Ted S. Warren/AP hide caption

itoggle caption Ted S. Warren/AP

Researchers are increasingly using cloud computing to discover new drugs and medical treatments. Cloud computing is often cheaper and quicker than in-house computing. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Should our growing understanding of pre-Columbian settlements in the Amazon have any bearing on the debate over the region's development today? Antonio Scorza/AFP/Getty Images hide caption

itoggle caption Antonio Scorza/AFP/Getty Images