Google is a search engine, right? Google Shopping Express makes it look as though the search giant is becoming more of an offline entity, too. In a move uniting search, e-commerce and package delivery, Google is shipping books, groceries, clothing and more that consumers purchase from retailers through the search engine. Then Google delivers the purchases to customers the same day in Manhattan, Peninsula, San Francisco, San Jose and West Los Angeles. Shoppers in Northern California receive overnight delivery.