YouTube

"I'm sure if Shakespeare were alive today he'd be doing classic guitar solos on YouTube. -- Peter Capaldi"

About
Founded in 2005 by former employees of eBay, YouTube has revolutionized the way the Internet watched video. Just a year after its launch, Chad Hurley, Steve Chen, and Jawed Karim sold the company to Google for $1.6 billion.

As of 2014, YouTube users uploaded 300 hours of video every minute, a threefold increase from the year before. It is ranked as the third most visited site on the Internet, behind only Google and Facebook. The site has become so massive that some enterprising users are making a comfortable living solely by producing and uploading videos to YouTube.

How to Use YouTube
YouTube users can watch videos without an account, but creating playlists, subscribing to creators, uploading videos, and commenting on others' videos requires a free registration (linked with Google+).

The home page of YouTube features a search bar prominently at the top of the page. To find a video, simply type your search term into that bar, hit enter, and peruse the selected videos.

By clicking "Upload" at the top of each page, registered users can choose an existing video file or use YouTube's video creation platform to upload and publicize their videos. Videos are limited to 2GB in size and 15 minutes in length.

Users can also customize their personal channel with a profile picture, banner, and curated playlists of their own content. From this page you can also subscribe to other channels and manage your subscriptions; this is a great way to keep up with the latest videos from related accounts.