Amazon.com's A9 search engine drops key features

Amazon.com Inc.'s A9 search engine has dropped some of its most widely touted features, including the ability to remember everything a user has ever searched for and a service that showed detailed, street-level images of major cities. The Internet retailer removed the functions, along with several others, late Friday. Amazon.com spokesman Drew Herdener said the changes are because the company is "shifting its priorities to areas where it can provide the greatest benefit for customers."