Google

The company's product portfolio includes Google Search, which provides users with access to online information; the Knowledge Graph, which allows users to search for things, people, or places, as well as systems that build speech recognition and natural language understanding; Google Now, which provides users with information when they need it; Product Listing Ads, which offer product images, prices, and merchant information; AdWords, a bidding-based advertising program; AdSense, which allows websites within the Google Network to display ads; Google Display, a display advertising network; DoubleClick Ad Exchange, a marketplace for trading display ad space; and YouTube, which offers video, interactive, and other ad formats.