
The C-Band All Sky Survey (C-BASS) is a radio astronomy project that aims to map the entire sky in the C Band (5 GHz). It has been conducted on two radio telescopes, one operating in the Karoo in South Africa, the other at Owens Valley Radio Observatory in California.

Visual Collaborative is an American festival and publishing platform highlighting the intersections of people, commerce, and innovation. Acclaim for its social impact in humanities, it was featured by VOA, for advancing the cause of humanities and the creative economy. The platform organizes exhibitions that feature talks, art, technology, development, and live music performances. Over the years, the initiative has grown in scope and size, aligning with sustainable goals.

Comunes is a nonprofit organization aiming to encourage the commons and facilitating grassroots work through free software web tools. Previously known as Ourproject.org, this collective established itself as a legal entity in 2009, forming Comunes. Nowadays it serves as an umbrella organization for several projects related to the Commons.

A Dark Reflection is a 2015 British independent investigative thriller film directed and produced by former British Airways airline captain Tristan Loraine. Billed as Erin Brockovich meets All the President's Men and as a fact-based investigative thriller, the film is based on the director's own experience as a commercial pilot.

Dashterov is a collaborative project by Armenian musicians Iveta Mukuchyan and Aram Sargsyan. Dashterov was awarded "Collaboration of the Year" at the Armenian Europe Music Awards. On 10 June 2017, the two artists presented their project at the Dalma Garden Mall. The project presents Armenian music in a modern version based on cultural values and historical roots. Dashterov introduces a mix of genres, highlighting Armenian folk and national music, presented in novel arrangements while reflecting their unique musical origin.

A Day in the Life of America is a 2019 American documentary film directed by Jared Leto. Shot over the course of 2017 Independence Day, the film depicts glimpses into the diversity and division of the United States. It was conceived as a companion piece to America (2018), the fifth studio album by Leto's rock band Thirty Seconds to Mars.

Distributed Proofreaders is a web-based project that supports the development of e-texts for Project Gutenberg by allowing many people to work together in proofreading drafts of e-texts for errors. As of March 2021, the site had digitized 41,000 titles.

Dreamtime Village is an intentional community in West Lima, Wisconsin, United States, whose residents participate in various permaculture, hypermedia, and sustainability projects. Dreamtime was founded in 1990 by Madison artists mIEKAL aND and Lyx Ish.

Ekşi Sözlük is a collaborative hypertext dictionary based on the concept of Web sites built up on user contribution. However, Ekşi Sözlük is not a dictionary in the strict sense; users are not required to write correct information. It is currently one of the largest online communities in Turkey with over 400,000 registered users. The number of writers is about 110,000. As an online public sphere, Ekşi Sözlük is not only utilized by thousands for information sharing on various topics ranging from scientific subjects to everyday life issues, but also used as a virtual socio-political community to communicate disputed political contents and to share personal views.

The Family History Research Wiki provides handbook reference information, and educational articles to help genealogists find and interpret records of their ancestors. It is a free-access, free-content, online encyclopedia on a wiki, hosted as part of the FamilySearch site. It is sponsored by FamilySearch, a non-profit organization, and a genealogical arm of The Church of Jesus Christ of Latter-day Saints. Anyone with access to the Internet may read any of the over 91,000 articles, and almost all articles can be edited by registered users (contributors). Registration is free.

Forever and a Day is a 1943 American drama film, a collaborative effort employing seven directors/producers and 22 writers, with an enormous cast of well-known stars.

Friendship Circle is a collaborative art installation by American artist Lee Kelly and musician Michael Stirling, located in Portland, Oregon's Tom McCall Waterfront Park, in the United States. The installation features a stainless steel sculpture with two 20-foot towers, designed by Kelly, and a 35-minute score composed by Stirling. It celebrates the sister city relationship between Portland and Sapporo, Japan.

Gitea is an open-source forge software package for hosting software development version control using Git as well as other collaborative features like bug tracking, wikis and code review. It supports self-hosting but also provides a free public first-party instance hosted in China on DiDi's cloud. It is a fork of Gogs and is written in Go. Gitea can be hosted on all platforms supported by Go including Linux, macOS, and Windows. The project is funded on Open Collective.

GitLab is a web-based DevOps lifecycle tool that provides a Git repository manager providing wiki, issue-tracking and continuous integration and deployment pipeline features, using an open-source license, developed by GitLab Inc. The open source software project was created by Ukrainian developers Dmytro Zaporozhets and Valery Sizov.

The Great Tapestry of Scotland is one of the world's largest community arts projects, hand stitched by 1,000 people from across Scotland. It is made up of 160 linen panels and 300 miles of wool - enough to stretch the entire length of Scotland. It is now on permanent display in its own purpose built gallery and visitor centre in the town of Galashiels in the heartland of the Scottish Borders.

Leland I, sometimes stylized as Leland 1 or Leland #1, is an outdoor 1975 sculpture by Lee Kelly and Bonnie Bronson, installed in Portland, Oregon, United States.

Life in a Day is a crowd-sourced documentary film comprising an arranged series of video clips selected from 80,000 clips submitted to the YouTube video sharing website, the clips showing respective occurrences from around the world on a single day, 24 July 2010.

Life in a Day 2020 is a 2021 American crowd-sourced documentary film directed by Kevin Macdonald. The sequel to the 2011 film Life in a Day, it premiered at the Sundance Film Festival on February 1, 2021, and on YouTube February 6, to generally favorable critical reviews. Like its predecessor, it comprises a wide array of selected video clips showing things happening in the world on one day: July 25, 2020.

The Midwestern Universities Research Association (MURA) was a collaboration between 15 universities with the goal of designing and building a particle accelerator for the Midwestern United States. It existed between 1953–1967, but could not achieve its goal in this time and lost funding. It was thought that President John F. Kennedy would have supported the MURA machine, while one of President Lyndon B. Johnson's first actions was the shutdown of the MURA machine and laboratory.
The Mutopia Project is a volunteer-run effort to create a library of free content sheet music, in a way similar to Project Gutenberg's library of public domain books. It started in 2000.

The National Action Plan to Combat Human Trafficking is a four-year action plan that was established by the Government of Canada on June 6, 2012 to oppose human trafficking in Canada. In 2004, the government's Interdepartmental Working Group on Trafficking in Persons was mandated to create a national anti-human-trafficking plan, but the mandate went unfulfilled despite reminders from politicians and non-governmental organizations (NGOs). Member of Parliament (MP) Joy Smith put forward motion C-153 in February 2007 to put a plan in place, and the House of Commons passed it unanimously. Smith began developing a proposal and released it in September 2010 under the title "Connecting the Dots". University of British Columbia law professor Benjamin Perrin helped guide Smith's writing of the proposal. Before the establishment of the NAP-CHT, a variety of people and organizations—including the 2009 and 2010 Trafficking in Persons (TIP) Reports of the United States Department of State—criticized Canada for failing to have such a plan.

The One Million Masterpiece is the largest artistic collaboration ever attempted. It is an ongoing project to produce a true piece of global artwork. As of October 16, 2007, 26,582 artists from 174 countries have participated, with $19,348.57 raised for charities worldwide.

Project Monterey was an attempt to build a single Unix operating system that ran across a variety of 32-bit and 64-bit platforms, as well as supporting multi-processing. Announced in October 1998, several Unix vendors were involved; IBM provided POWER and PowerPC support from AIX, Santa Cruz Operation (SCO) provided IA-32 support, and Sequent added multi-processing (MP) support from their DYNIX/ptx system. Intel Corporation provided expertise and ISV development funding for porting to their upcoming IA-64 CPU platform, which was yet to be released at that time. The focus of the project was to create an enterprise-class UNIX for IA-64, which at the time was expected to eventually dominate the UNIX server market.

The Ribbon International is a United Nations non-governmental organization that created a large decorated cloth promoting nuclear disarmament and care and protection of the earth. In an event held on August 4, 1985, panels were connected in an 18 miles (29 km) long strip stretching from the Pentagon into Washington D.C. The event was covered in the film The Ribbon Starts Here by Nigel Noble (1988). Individual sections of the Ribbon are exhibited internationally. In 1991, The Ribbon International became a United Nations Non Governmental Organization. Ribbon events can be held for special designated days such as the International Day of Peace, Earth Day, special prayer days or other events. Panels from the Ribbon were displayed at the United Nations Decade for Women international conference in Nairobi in 1985, and others were used by members of Women for a Meaningful Summit at their demonstration at the Geneva Summit (1985). Ribbons were used at peace demonstrations at the Nevada Nuclear Test Site, and the Horse Creek Missile Silo near Cheyenne, Wyoming, and the Great Peace March for Global Nuclear Disarmament in 1986.

The SCAR Project is a series of large-scale portraits of young breast cancer survivors shot by fashion photographer David Jay.

The Scottish Diaspora Tapestry is a large embroidery, 153 metres (502 ft) in length, crafted from 305 panels that were embroidered in 34 countries. It was the second major tapestry project to have originated from the Prestoungrange Arts Festival in Prestonpans, East Lothian, Scotland. Work on the panels began in 2012. A version of the tapestry was exhibited across Scotland in 2014 for the Homecoming. The tapestry was displayed in locations around Western Europe the following year. November 2015 was the first time that all 305 panels were shown together. In 2016 and 2017 the tapestry toured across Australia and Canada and returned to Edinburgh to go on display in May 2017.

Seekers of Tomorrow: Masters of Modern Science Fiction is a work of collective biography on the formative authors of the science fiction genre by Sam Moskowitz, first published in hardcover by the World Publishing Company in 1965. The first paperback edition was issued by Ballantine Books in October, 1967. A photographic reprint of the original edition was issued in both hardcover and trade paperback by Hyperion Press in 1974. Most of its chapters are revised versions of articles that initially appeared in the magazine Amazing Stories from 1961-1964.

SplatSpace is a multidisciplinary collaborative workspace located in Durham, North Carolina. SplatSpace, also known as SplatSpace: Durham's HackerSpace, and previously as Durham's MakerSpace is a 501(c)(3) non-profit organization composed primarily of people from the local maker community. Classifiable as a Hackerspace or Makerspace, the majority of activities members are involved in typically revolve around technology, however, traditional skills such as wood-working, metal working, textiles, arts and crafts are represented as well.

Springsteen & I is a 2013 documentary-biographical film directed by Baillie Walsh documenting the life and career of Bruce Springsteen through the eyes and insights of his fans throughout the world.

SOH is an abbreviation for States of Humanity and is an initiative of multimedia artist Alex Vermeulen, which led to an interdisciplinary Gesamtkunstwerk.

Terms of Service; Didn't Read (ToS;DR) is a community project which aims to analyze and grade the terms of service (TOS) and privacy policies of major Internet sites and services. Each aspect of a TOS or privacy policy is assessed as positive, negative, or neutral. Services are graded from A (best) to E (worst) once a comprehensive list of cases has been reviewed by volunteer curators. The name of the project is a play on the phrase too long; didn't read.

The Thomas Young Centre (TYC) is an alliance of London research groups working on the theory and simulation of materials (TSM). It is named after the celebrated scientist and polymath Thomas Young (1773–1829), who lived and worked in London and is known in the world of science for a number of important discoveries concerning the wave nature of light, the theory of vision, the elastic properties of solids, and the theory of surface tension. The participating research groups are based mainly at Imperial College London, King's College London, Queen Mary University of London (QMUL) and University College London (UCL), but there are also members at the National Physical Laboratory in Teddington. The aims of the TYC are to foster collaboration between TSM research groups in London, to provide a world-class source of graduate education in the field, and to address problems of major importance to industry and society. The current (2009) membership of TYC numbers about 80 research groups, of which six are led by Fellows of the Royal Society.

The Virtual Teaching Collection (VTC) project at the Museum of Archaeology and Anthropology within the University of Cambridge, led by Dr Robin Boast, ran from 1994 to 1997 and was part of the Teaching and Learning Technology Project funded by the Higher Education Funding Council for England.

"We Are the World 25 for Haiti " is a collaborative charity song and music video produced by singer-songwriter Lisa Lavie and posted to the YouTube video sharing website to raise money for victims of the January 12 2010 Haiti earthquake.

Wikirating is a free, collaborative platform for credit ratings that aims to provide a transparent source for credit ratings of countries, companies and structured products. It is the first independent rating platform mainly based on community's contributions to feed data and information to establish independent, impartial and transparent ratings.