YouTube

If you want to watch a video, chances are you go to YouTube. It hosts movies, trailers, live streams, vlogs, music videos, news, and much more. YouTube is synonymous with video watching and sharing and now pulls in billions of revenue every year for owners Google.
YouTube was founded by Steve Chen, Chad Hurley, and Jawed Karim. The trio met while working at PayPal, a company which found success after being bought by eBay.