YouTube
From Wikitubia
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| Type | Subsidiary |
| Founded | February 2005 |
| Headquarters | San Bruno, California, U.S.A. |
| Key people | Steve Chen, Founder & CTO Chad Hurley, Founder & CEO Jawed Karim, Founder & Advisor |
| Owner | Google Inc. |
| Slogan | Broadcast Yourself |
| Website | YouTube.com |
| Type of site | Video hosting service |
| Advertising | Google, Adsense |
| Registration | Optional |
| Available in | 12 languages |
| Launched | February 15, 2005 |
| Current status | Active |
YouTube is a video site where users can upload their own videos. It was founded in 2005 and has became very popular across the world. There have been some controversies with copyright infringements.
Contents |
Information
YouTube has over 2 million users, it is one of the top online sites and has an Alexa ranking at number 3. The site has several features, such as subscribing to users whom you like, this is also known as subbing or subs. Favorites videos you can save on your channel page and come back and watch at a later time. YouTube is one of the best online sites that is free, the only catch is that you must join to comment which is free, and that copyrighted material may be removed.
The displayed resolution of YouTube is 640x480 (480p), so it cannot display HD videos. However, if a video uploaded is 640x480 or higher, a small link appears below the video saying "View In Higher Quality". If this link is clicked, the quality is slightly improved, and now HD has been added.
You must be 13 or older to register an account on YouTube.
Format and Quality Comparison Table
| Standard | Medium | High | HD | Mobile | Old formats (pre 2009 Feb) | ||||
|---|---|---|---|---|---|---|---|---|---|
| Standard | High | Mobile | |||||||
| fmt value | 34, 38 | 18 | 35 | 22 | 17 | none | 6 | 13 | |
| Container | FLV | MP4 | FLV | MP4 | 3GP | FLV | 3GP | ||
| Video | Encoding | MPEG-4 AVC (H.264) | MPEG-4 Part 2 | H.263 | H.263/AMR | ||||
| Aspect ratio | 4:3, 16:9 | 4:3 | 16:9 | 11:9 | 4:3 | 4:3 | |||
| Max Resolution | 320×240 400×226 | 480×360 | 864×480 | 1280×720 | 176×144 | 320×240 | 480×360 | 176×144 | |
| Bitrate (kbit/s) | 200 | 512 | 900 | 2000 | ? | 200 | 900 | ? | |
| Audio | Encoding | AAC | MP3 | AMR | |||||
| Channels | 2 | 1 | |||||||
| Sampling rate (Hz) | 44100 | 22050 | 44100 | 8000 | |||||
| Bitrate (kbit/s) | ? | 128 | 232 | ? | 64 | 96 | ? | ||
Ownership
YouTube was purchased by Google around the time of 2007. Some say it has changed some of YouTube's policies though most of the site continues to work the same.
New Features
Several new features have been added to YouTube in the following years.
- Thumbs Up/Thumbs Down - Is a rating system used to rate comments that are like by users or disliked, these can be seen on videos that allow the thumbs to be on it.
- Insight - This is a feature that tells you about your video, such as ratings, where it was viewed, how popular it is, and other recently new breakdowns upon views such as where the most viewers where from.
- Audio Swap - Is a feature that will allow you to add or change the sound on your videos.
- Annotation - This is a feature that allows you to add notes on certain spans of your videos.
- HD
- WideScreen
- Channels Beta - A new style of channels that have been extremely unpopular with many YouTube users.
Alternate logos
 YouTube logo celebrating one billion views every day. |
 Halloween logo for 2009. (link) |
