Infobox Software
name = Joost

caption = A channel playing in Joost.
developer = Joost N.V.
released =
latest release version =
latest release date =
latest preview version = 1.1.7
latest preview date = release date|2008|06|18
programming language =
operating system = Windows XP,
Windows Vista,
Mac OS X (Intel only)
language = English
genre = P2P/TV
license = Freeware
website = []

Joost (IPA-en|dʒuːst, like "juiced") is a system for distributing recorded TV shows and other forms of video over the Web using peer-to-peer TV technology, created by Niklas Zennström and Janus Friis (founders of Skype and Kazaa).

Joost began development in 2006. Working under the code name "The Venice Project", Zennström and Friis assembled teams of some 150 software developers in about six cities around the world, including New York, London, Leiden and Toulouse. According to Zennström at a 25 July 2007 press conference about Skype held in Tallinn, Estonia, Joost had signed up more than a million beta testers, and its launch was scheduled for the end of 2007. [ [ 1 million Joost users prepare for year-end launch | APC Magazine ] ]

The teams are currently in negotiations with FOX networks. It has signed up with Warner Music, Indianapolis Motor Speedway Productions (Indianapolis 500, IndyCar Series) and production company Endemol for the beta.Orlowski, Andrew (January 17, 2007). [ Joost - the new, new TV thing.] "The Register"] In February 2007, Viacom entered into a deal with the company to distribute content from its media properties, including MTV Networks, BET and film studio Paramount Pictures.


The program is based on P2PTV technology and is expected to deliver (relaying) near-TV resolution images. It turns a PC into an instant on-demand TV without any need for additional set top box. News updates, discussion forums, show ratings, and multi-user chat sessions (often linked to the active stream/channel) are made possible through the use of semi-transparent widget overlays.

The current version of the software is based on XULRunner and the audio management re-uses the ZAP Media Kit. The peer to peer layer comes from the Joltid company, which also provided the peer to peer layer of Skype. The video playback utilizes the CoreCodec, CoreAVC H.264 video decoder.

Joost soft launched its Widget API on August 29th 2007 under a non-copyleft open source license and encourages third party developers to create tools for its TV 2.0 platform.


Joost development

As co-owners of Skype, Friis and Zennström received part of a $2.6 billion cash payment when eBay acquired Skype in 2005, which easily covered the development and marketing cost of their Joost venture.Just a week after launching the service, the founders announced that they had raised an additional $45 million. Sequoia Capital, which backed Yahoo, Google and YouTube; Index Ventures, an early investor in Skype; Li Ka-shing, the Hong Kong tycoon; and CBS, the US media group, have all taken “small minority” stakes in the start-up.
Viacom is also understood to be among the partners, although the nature of its backing has not been disclosed.

Content distribution

As opposed to streaming technology in which all clients get the feed from the server, P2P TV technology differs in the sense that the servers serve only a handful of clients; each of the clients in turn propagate the stream to more downstream clients and so on. This moves the distribution costs from the channel owner to the user.

The Joost service is ad-supported, with advertising analogous to that shown on traditional TV, according to former CEO Fredrik de Wahl. [cite web| author = Greg Sandoval | title = Skype founders name new video start-up Joost | url= | publisher = CNET | accessdate = 2007-01-16] Joost has 40 advertisers, including Sony Pictures, BMW, and Sprite. [cite web| author = David Clark | title = David Clark, EVP and GM Joost | url= | publisher = PLM | accessdate = 2007-11-21] Aside from injected video-advertisements, it serves additional interactive advertisements via overlays and short pop-ups that are clickable. As this is visible related to the content shown, it is not a surprise that Joost sends regular data back to ad-servers via port 11208, a fact that is disclosed in legalese to users in the end-user license agreement.


As of September 2008, the Joost software is in an open beta stage. Joost requires Windows XP or Vista; or Mac OS X (10.4 and later) on an Intel Mac. An invitation is no longer required.

There is no Linux, or Mac OS X on PowerPC, support at this time. It was reported that Linux is not the priority for Joost. [ [ Joost Forums Going Down (Joost) ] ]

Programming content

Viacom, Inc., and Joost entered into a content provider agreement for the Joost platform on February 20, 2007. Under the agreement, divisions of Viacom (including MTV Networks, BET Networks and Paramount Pictures) will license their "television and theatrical programing" to Joost. [ ] This came shortly after Viacom requested 100,000 potentially infringing videos to be removed from, which showed a preference by Viacom for the Joost platform over YouTube. [cite news
first = Chris
last = Tew
title = Viacom: "Good-bye YouTube, Hello Joost!"
url =
work =
date = 2007-02-20

Joost also currently has licensing agreements in place with Ministry of Sound TV, Aardman Animation, Warner Music, the production company Endemol, Fremantle Media, RDF Media, Diversion Media, [ [ Exclusive: Joost Partners with Diversion Media ] ] CBScite web| author = Glauser, Stephen | title = Joost shows more promise with CBS deal | url = | publisher = Too Real | accessdate = 2007-04-13] and CenterStaging's [] On May 1, 2007, Joost signed a deal to distribute NHL content, including full game replays of the Stanley Cup Finals, and vintage games. [ [ - News ] ]

Much of the content on Joost is restricted to users in the United States of America, due to international licensing arrangements.

See also

* Veoh
* Internet television
* Hulu
* Babelgum
* Zattoo
* Miro (software)
* TVUnetworks
* Blinkx
* Kontiki
* LiveStation


Further reading

* [ Joost ‘opens’ to the public — full review (last100, May 20, 2007)]
* [ Turn up the Joost (, May 1, 2007)]
* [ Skype Founders' Venice Project Revealed (Business Week, October 5, 2006)]
* [ Nothing to Watch on TV? Streaming Video Appeals to Niche Audiences (NY Times, August 6, 2007)]

External links

* [ Joost website]

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Look at other dictionaries:

  • Joost — bezeichnet: Sankt Joost, ein Ortsteil der Gemeinde Stinstedt im Landkreis Cuxhaven in Niedersachsen, mit gleichnamiger Wallfahrtskapelle Sankt Joost (Wangerland), ein Ort im Wangerland Joost (Software), eine Software und zugehöriges Videoportal… …   Deutsch Wikipedia

  • Joost — Dernière version Beta 1.0.1 (12/10/2007) [ …   Wikipédia en Français

  • Joost — Тип P2P/ТВ Операционная система …   Википедия

  • Joost — m Dutch form of the Latin name JUSTUS (SEE Justus) or of Jodocus, a Latinized form of the Breton name Iodoc (see JOYCE (SEE Joyce)) …   First names dictionary

  • Joost — Este artículo o sección se refiere o está relacionado con un software futuro o en desarrollo. La información de este artículo puede cambiar frecuentemente. Por favor, no agregues datos especulativos y recuerda colocar referencias a fuentes… …   Wikipedia Español

  • Joost — Recorded in England in a wide range of spellings including Jest, Jeste, Joce, Jose, Joist, Jost, Joust and Joost, this is a surname of Germanic, Dutch, Breton and Norman Franch origins. It is a cognate of the surname Joyce , itself deriving from… …   Surnames reference

  • Joost — Очередной проект создателей Skype (см. скайпкаст) бесплатное интернет телевидение, нечто среднее между YouTube, обычным телевидением и файлообменными сетями. Возможный конкурент традиционного телевидения (так же, как Skype конкурент традиционной… …   Словарь 2007 года

  • Joost — Nebenform von → Jost; niederländische Form von → Jodokus (Bedeutung: Herr, Krieger) …   Deutsch namen

  • Joost — aus einer Variante von Jost (Jodokus) entstandener Familienname …   Wörterbuch der deutschen familiennamen

  • Joost van den Vondel — (Philips Koninck, 1665) Joost van den Vondel (* 17. November 1587 in Köln; † 5. Februar 1679 in Amsterdam) war ein niederländischer Dichter und Dramatiker. Inhaltsve …   Deutsch Wikipedia