There are more then 100 video sites on the web that are existent with several features and functionalities. The following are the best video sites I found on the basis of their user ratings and they are absolutely Free.
1 YouTube
YouTube has become the number one video sharing web application which is available for all Smartphones, iPhones, iPads and Window Phones. You get 61 language versions through its user interface. YouTube is directly integrated with google+ social networking website and also chrome web browser. You can view Youtube videos within the google+ interface itself.
2 Netflix
Netflix is the next popular video streaming website through which you can Watch TV shows and Movies at your will, and watch any video anywhere on the web. It stretches support for Window PC, Linux, and Mac operating system as well . You can watch Netflix videos on the Xbox 360 game consoles and also on Sony computer entertainment Playstation 3.
3 Vimeo.com -
Vimeo comes next to the row of popularity in the video platforms but there uploading commercial content is not allowed. Every uploaded content on vimeo has to be original and non commercial. Vimeo non plus users are allowed to upload only up to on one HD video per week and, and up to 500 mega byte of videos in a week. The premium account holders can can create any number of channels, upload unlimited HD videos, albums and groups.
4 screen.Yahoo.com
Yahoo screen is one of the most popular video hosting websites in recent days. It has on demand video streaming service especially for TV shows, movies, webisodes and even for other media. Yahoo Video service supports a huge number of video categories like Comedy Music, Celebrity, Gaming and Food, Fashion& Beauty, Finance, Health, Sports, Movies, News, Tv, Travel, Technology news etc.
5 Dailymotion
Dailymotion provides simple functionality video uploading and browsing system and has also added few more features like subscribing to channels, adding friends which the users could follow themselves and also recommend those videos to their friends and acquaintances. Dailymotion users are allowed to integrate videos on their own websites and blogs. They can watch their own videos on Facebook platform, on smart TV, Android and Xbox 360, and through their "video on demand" program.
6 Vube
Vube.com is another video sharing webspace where you can upload your favorite video clips and earn thousands of dollars. Vube is also offering all of their services completely free. Here you can create your own channel for publishing your content, can comment on the clips to collaborate, interact with people and provide feedback, follow other channels, share content, receive notifications, and connect with other social networking services.
7 Vine
The Vine Video application supports Window Phone, Android, iOS operating system. The app size is 14 MB and it is available in 25 languages. It is originally a short form video clip sharing service that allows users to upload and record only six second long looping video clips and then to "revine". This feature revine is a functionality which helps in sharing other peoples posts among the followers. Vine supports social networks like Facebook and Myspace .
8 Twitch
Twitch is a website for direct live streaming video where you can find the top video shows likedestructoid, joystiq, manvsgame. Twitch platform is ideally crafted for the real time coverage of e-sports tournaments and also for gaming related talk shows. This is a website that has a dedicated software for Xbox one, Play station 4, and Xbox 360. You can even get twitch mobile apps on android devices and iOS platforms.
9 Liveleak
Live leak is a popular video sharing website that covers categories of videos from reality footage, politics, war clips, and world events. Live leak provides a good number of categories also provides chat option for its users and viewers.
10 Ustream.tv
Ustream supports a number of video streaming functionality like easy streaming, multi-device support, HD broadcasting, developer APIs, embedding and engaging with audience. It covers all major categories like news, technology, entertainment and also political events. Ustream has a fingerprinting system which can detect copyrighted content. This Website application is available in English, Spanish, German, Korean and Japanese languages.