Delicious was a social bookmarking web service for storing, sharing, and discovering web bookmarks. The site was founded by Joshua Schachter and Peter Gadjokov in 2003 and acquired by Yahoo! in 2005. By the end of 2008, the service claimed more than 5.3 million users and 180 million unique bookmarked URLs. Yahoo sold Delicious to AVOS Systems in April 2011, and the site relaunched in a "back to beta" state on September 27 that year. In May 2014, AVOS sold the site to Science Inc. In January 2016 Delicious Media, a new alliance, reported it had assumed control of the service.
Furl was a free social bookmarking website that allowed members to store searchable copies of webpages and share them with others. Every member received 5 gigabytes of storage space. The site was founded by Mike Giles in 2003 and purchased by LookSmart in September 2004. Diigo bought it from LookSmart in exchange for equity.
Flickr is an American image hosting and video hosting service, as well as an online community, founded in Canada and headquartered in the United States. It was created by Ludicorp in 2004 and was a popular way for amateur and professional photographers to host high-resolution photos. It has changed ownership several times and has been owned by SmugMug since April 20, 2018.
Social bookmarking is an online service which allows users to add, annotate, edit, and share bookmarks of web documents. Many online bookmark management services have launched since 1996; Delicious, founded in 2003, popularized the terms "social bookmarking" and "tagging". Tagging is a significant feature of social bookmarking systems, allowing users to organize their bookmarks and develop shared vocabularies known as folksonomies.
CiteULike was a web service which allowed users to save and share citations to academic papers. Based on the principle of social bookmarking, the site worked to promote and to develop the sharing of scientific references amongst researchers. In the same way that it is possible to catalog web pages or photographs, scientists could share citation information using CiteULike. Richard Cameron developed CiteULike in November 2004 and in 2006 Oversity Ltd. was established to develop and support CiteULike. In February 2019, CiteULike announced that it would be ceasing operations as of March 30, 2019.
In information systems, a tag is a keyword or term assigned to a piece of information. This kind of metadata helps describe an item and allows it to be found again by browsing or searching. Tags are generally chosen informally and personally by the item's creator or by its viewer, depending on the system, although they may also be chosen from a controlled vocabulary.
Meebo was an instant messaging and social networking service provider. It was founded in September 2005 by Sandy Jen, Seth Sternberg, and Elaine Wherry, and was based in Mountain View, California. Initially the company offered a web-based instant messenger service, extending its offer in more general online chat and even social networking directions. In June 2012, Google acquired Meebo to merge the company's staff with the Google+ developers team.
Yahoo! Answers was a community-driven question-and-answer (Q&A) website or knowledge market owned by Yahoo! where users would ask questions and answer those submitted by others, and upvote them to increase their visibility. Questions were organised into categories with multiple sub-categories under each to cover every topic users may ask questions on, such as beauty, business, finance, cars, electronics, entertainment, games, gardening, science, news, politics, parenting, pregnancy, and travel. The number of poorly formed questions and inaccurate answers made the site a target of ridicule.
nofollow is a setting on a web page hyperlink that directs search engines not to use the link for page ranking calculations. It is specified in the page as a type of link relation; that is: <a rel="nofollow" ...>. Because search engines often calculate a site's importance according to the number of hyperlinks from other sites, the nofollow setting allows web site authors to indicate that the presence of a link is not an endorsement of the target site's importance.
Google Bookmarks is a discontinued online bookmarking service from Google, launched on October 10, 2005. It was an early cloud-based service that allowed users to bookmark webpages and add labels or notes. The service never became widely adopted by Google users.
HCL Connections is a Web 2.0 enterprise social software application developed originally by IBM and acquired by HCL Technologies in July 2019. Connections is an enterprise-collaboration platform which helps teams work more efficiently. Connections is part of HCL collaboration suite which also includes Notes / Domino, Sametime, Portal and Connections.
Diigo is a social bookmarking website that allows signed-up users to bookmark and tag Web pages. Additionally, it allows users to highlight any part of a webpage and attach sticky notes to specific highlights or to a whole page. These annotations can be kept private, shared with a group within Diigo, or be forwarded to someone else via a special link. The name "Diigo" is an acronym from "Digest of Internet Information, Groups and Other stuff".
Shelfari was a social cataloging website. Shelfari users built virtual bookshelves of the titles they owned or had read, and could rate, review, tag, and discuss their books. Users could also create groups that other members could join, create discussions, and talk about books, or other topics. Recommendations could be sent to friends on the site for what books to read.
Tagged is a social discovery website based in San Francisco, California, founded in 2004. It allows members to browse the profiles of any other members, and share tags and virtual gifts. Tagged claims it has 300 million members as of 2014. As of September 2011, Quantcast estimates Tagged monthly unique users at 5.9 million in the United States, and 18.6 million globally. Michael Arrington wrote in April 2011 that Tagged is most notable for the ability to grow profitably during the era of Facebook.
Pixiv is a Japanese online community for artists. It was first launched as a beta test on September 10, 2007, by Takahiro Kamitani and Takanori Katagiri. Pixiv Inc. is headquartered in Sendagaya, Shibuya, Tokyo, Japan. As of April 2020, the site consists of over 50 million members, over 100 million submissions, and receives over 3.7 billion page views monthly. Pixiv aims to provide a place for artists to exhibit their illustrations and get feedback via a rating system and user comments. Works are organized in an extensive tag structure which forms the backbone of the website.
ApexKB, is a discontinued free and open-source script for collaborative search and knowledge management powered by a shared enterprise bookmarking engine that is a fork of KnowledgebasePublisher. It was publicly announced on 29 September 2008. A stable version of Jumper was publicly released under the GNU General Public License and made available on SourceForge on 26 March 2009.
Enterprise bookmarking is a method for Web 2.0 users to tag, organize, store, and search bookmarks of both web pages on the Internet and data resources stored in a distributed database or fileserver. This is done collectively and collaboratively in a process by which users add tag (metadata) and knowledge tags.
Pinboard is a social bookmarking website developed and run by Maciej Cegłowski. It has a plain design and a focus on personal management of bookmarks using tags to organize them, similar to early versions of the Delicious social bookmarking service.
Multiply was a social networking service with an emphasis on allowing users to share media – such as photos, videos and blog entries – with their "real-world" network. The website was launched in March 2004 and was privately held with backing by VantagePoint Venture Partners, Point Judith Capital, Transcosmos, and private investors. Multiply had over 11 million registered users. The company was headquartered in Boca Raton, Florida but moved to Jakarta, Indonesia early in 2012 and recently announced intentions to switch to e-commerce, dropping the social networking aspect entirely. Quantcast estimates Multiply had 2.47 million monthly U.S. unique visitors at their peak on July 30, 2012.
