Internet properties established in 2003

Wikisource is an online wiki-based digital library of free-content textual sources operated by the Wikimedia Foundation. Wikisource is the name of the project as a whole; it is also the name for each instance of that project, one for each language. The project's aim is to host all forms of free text, in many languages, and translations. Originally conceived as an archive to store useful or important historical texts, it has expanded to become a general-content library. The project officially began on November 24, 2003, under the name Project Sourceberg, a play on Project Gutenberg. The name Wi

thumb|300px|right|Presentation about Wikiquote during the Wiki Indaba 2023 conference in Agadir, [[Morocco]] Wikiquote is part of a family of wiki-based projects run by the Wikimedia Foundation using MediaWiki software. The project's objective is to collaboratively produce a vast reference of quotations from prominent people, books, films, proverbs, etc. and writings about them. The website aims to be as accurate as possible regarding the provenance and sourcing of the quotations.

thumb|right|Growth of the eight largest Wikibooks sites (by language), July 2003–January 2010

Arabic-language edition of Wikipedia

Myspace (formerly stylized as MySpace, currently myspace; and sometimes my␣, with an elongated open box symbol) is an American social networking service. Launched on August 1, 2003, it was the first social network to reach a global audience and had a significant influence on technology, pop culture and music. It also played a critical role in the early growth of companies like YouTube and created a developer platform that launched companies such as Zynga, RockYou, and Photobucket, among others, to success. From 2005 to 2009, Myspace was the largest social networking site in the world.

video game store and digital distribution platform among other services

Indonesian-language edition of Wikipedia

[et] Estonian-language edition of Wikipedia

Serbian-language edition of Wikipedia

Hungarian-language edition of Wikipedia

Bulgarian-language edition of Wikipedia

Romanian-language edition of Wikipedia, the free-content encyclopedia

Slovak-language edition of Wikipedia

Hindi-language edition of Wikipedia, the free encyclopedia

Croatian-language edition of Wikipedia

Albanian-language edition of Wikipedia

The Pirate Bay, commonly abbreviated as TPB, is a free searchable online index of movies, music, video games, pornography and software. Founded in 2003 by Swedish think tank Piratbyrån, The Pirate Bay facilitates the connection among users of the peer-to-peer torrent protocol, which are able to contribute to the site through the addition of magnet links. The Pirate Bay has consistently ranked as one of the most visited torrent websites in the world.

Lithuanian-language edition of Wikipedia

Thai-language edition of Wikipedia

Tatar-language edition of Wikipedia

Latvian-language edition of Wikipedia

Georgian-language edition of Wikipedia

Armenian-language edition of Wikipedia

4chan is an anonymous English-language imageboard website. Launched by Christopher "moot" Poole in October 2003, the site hosts boards dedicated to a wide variety of topics, including video games, television, literature, cooking, weapons, music, history, technology, anime, physical fitness, politics, and sports, among others. Registration is not available, except for staff, and users typically post anonymously. , 4chan receives more than 22 million unique monthly visitors, of whom approximately half are from the United States.

Tamil-language edition of Wikipedia

online platform for targeted advertisements

Wikitravel is a web-based collaborative travel guide based on the wiki format and owned by Internet Brands. It was most active from 2003 through 2012, when most of its editing community left and brought their contributions to the nonprofit Wikivoyage guide.

Uzbek-language edition of Wikipedia

Macedonian-language edition of Wikipedia

Welsh-language edition of Wikipedia

[vo] Volapük-language edition of Wikipedia

MyHeritage is an online genealogy company with web, mobile, and software products and services, founded in Israel in 2003. Users of the platform can obtain their family trees, upload and browse through photos, and search through over 19.9 billion historical records, among other features. In early 2021 it was acquired by Francisco Partners, an American private equity firm, for $600 million. == As of 2023, the service supported 42 languages. In 2016, it launched a genetic testing service called MyHeritage DNA, with more than 6.5 million DNA kits in the company's database by March 2023. The compa

Irish-language edition of Wikipedia

Marathi-language edition of Wikipedia

digital media store operated by Apple Inc

logo of the Wikipedia online encyclopedia

Tagalog-language edition of Wikipedia

[kn] Kannada-language edition of Wikipedia

Alemannic-language edition of Wikipedia

social bookmarking web service

Taobao is a Chinese online shopping platform. It is headquartered in Hangzhou and is owned by Alibaba. According to Alexa rank, it was the eighth most-visited website globally in 2021. Taobao.com was registered on April 21, 2003 by Alibaba Cloud Computing (Beijing) Co., Ltd.

[zu] Zulu-language edition of Wikipedia

Atom Syndication Format (XML)-used for web feeds Atom Publishing Protocol (HTTP)-protocol for creating and updating web resources

Agoda.com, headquartered in Singapore, is an online travel agency that facilitates reservations for lodging, flights, ground transportation, and activities. It is a subsidiary of Booking Holdings.

service by Google

Kinopoisk (, a portmanteau of "cinema" and "search") is a Russian online database of information related to films, TV shows including cast, production team, biographies, plot summaries, ratings, and reviews. Since 2018 (as КиноПоиск HD) also a subscription video on demand streaming service with several thousand films, TV series, cartoons and including premieres and exclusive ones, has also been available.

curated list of peer-reviewed open-access journals

PLOS (for Public Library of Science; PLoS until 2012) is a nonprofit publisher of open-access journals in science, technology, and medicine and other scientific literature, under an open-content license. It was founded in 2000 and launched its first journal, PLOS Biology, in October 2003.

entertainment news website

YaCy (pronounced “ya see”) is a free distributed search engine built on the principles of peer-to-peer (P2P) networks, created by Michael Christen in 2003. The engine is written in Java and distributed on several hundred "YaCy-peer" computers, .

Technology news publication

HanCinema () is an online South Korean movie and drama database created by Cédric Collemine during the summer of 2003 in Korea. It provides information related to Korean movies, television dramas, actors, and other related information. It is aimed at non–South Korean audiences.

thumb|Previous Hi5 logo used until 2010. thumb|250px|Map of countries with most users of Hi5 hi5 is an American social networking service based in San Francisco, California. It is owned by The Meet Group.

ImageShack is a subscription-based image hosting website headquartered at Los Gatos, California.

anime-centered social media and forum website

Metacafe was an Israeli video-sharing website, launched in July 2003. During the mid-2000s it was one of the largest video-sharing websites, though it eventually began to be superseded by YouTube, Vimeo and Dailymotion. On 28 August 2021, the platform's website became inactive, along with its social media pages having become abandoned.

Demonoid is a BitTorrent tracker and website founded in 2003 to facilitate file-sharing–related discussion and provide a searchable index of torrent files. The site underwent intermittent periods of extended downtime in its history due to the occasional need to move the server, generally caused by cancellation of ISP service due to local political pressure.

wiki about Star Trek

BugGuide (or BugGuide.net) is a website and online community of naturalists, both amateur and professional, who share observations of arthropods such as insects, spiders, and other related creatures. The website consists of informational guide pages and many thousands of photographs of arthropods from the United States and Canada which are used for identification and research. The non-commercial site is hosted by the Iowa State University Department of Entomology. BugGuide was conceived by photographer Troy Bartlett in 2003 and since 2006 has been maintained by John VanDyk, an adjunct assistan

isoHunt was an online torrent files index and repository, where visitors could browse, search, download or upload torrents of various digital content of mostly entertainment nature. The website was taken down in October 2013 as a result of a legal action from the MPAA; by the end of October 2013 however, two sites with content presumably mirrored from isohunt.com were reported in media. One of them – isohunt.to – became a de facto replacement of the original site. It is not associated in any way with the old staff or owners of the site, and is to be understood as a separate continuation.