Search: Google

Although I am not a fan of monopolies as in the long run they are bad for society as they reduce indie development of idea, Google is certainly a powerful search website/engine, which usually gets you the info you need, and the initial interface is clean. They generate revenue via Google Ads, Map and other APIs, Adwords, Google Play, and many other products. They also own many other companies and products, such as YouTube, Android, and the Google Pixel smart phone.