Rate Your Music (or RYM) is an online collaborative metadata database of musical and non-musical releases and films which can be cataloged, rated and reviewed by users. In RYM users rate and catalog releases, as well as write reviews, create lists and add artists and releases to the database.

Duolingo is a language-learning and translation platform. It is also used as a crowdsourcing for web pages and documents translation.

OpenSubtitles.org offers direct downloads of subtitles written down by users.

Directory with alternative software (mostly FLOSS) to Opt out of global data surveillance programs like PRISM, XKeyscore and Tempora.

antiX is a fast, lightweight and easy to install linux live CD distribution based on Debian Testing for Intel-AMD x86 compatible systems. antiX offers users the "antiX Magic" in an environment suitable for old computers.

The Debian Project is an association of individuals who have made common cause to create a free operating system. This operating system that we have created is called Debian. An operating system is the set of basic programs and utilities that make your computer run. At the core of an operating system is the kernel. The kernel is the most fundamental program on the computer and does all the basic housekeeping and lets you start other programs. Debian GNU/Linux is one of the most popular Linux distributions for personal computers and network servers.

Kune is a free/open source distributed social network focused on collaboration rather than just on communication. That is, it focuses on online real-time collaborative editing, decentralized social networking and web publishing, while focusing on workgroups rather than just on individuals. It aims to allow for the creation of online spaces for collaborative work where organizations and individuals can build projects online, coordinate common agendas, set up virtual meetings, publish on the web, and join organizations with similar interests.

Wikipedia is a collaboratively edited, multilingual, free Internet encyclopedia that is supported by the non-profit Wikimedia Foundation. Volunteers worldwide collaboratively write Wikipedia's 30 million articles in 287 languages, including over 4.4 million in the English Wikipedia. Anyone who can access the site can edit almost any of its articles, which on the Internet comprise the largest and most popular general reference work, ranking sixth globally among all websites on Alexa with an estimated 365 million readers.