Twine is an open-source tool for telling interactive, nonlinear stories.

Astronomers at Las Cumbres Observatory are investigating exoplanets - planets which orbit stars other than our Sun - and you can too. Joining Agent Exoplanet you will study known exoplanets using images taken by LCOGT’s telescopes. You'll measure the brightness of a star while a planet moves between it and our viewpoint.You can examine as many images, from as many exoplanet transit events, as you like and contribute to understanding the properties of each exoplanet.

Couchsurfing is a global community of 7 million people in more than 100,000 cities who share their life, their world, their journey. Couchsurfing connects travelers with a global network of people willing to share in profound and meaningful ways, making travel a truly social experience.

Morpheus was a file sharing and searching peer-to-peer client for Microsoft Windows, developed and distributed by the company StreamCast, that originally used the Opennap protocol, but later supported many different peer-to-peer protocols.

Drivers can offer empty seats and passengers can book a ride to their destination. People can check user profiles and choose who they want to ride with, how much space and comfort they need, where they want to meet and what they are willing to pay

A Nerdkit is a collection of components, some software, helpful documentation and an active user community. A NerdKits microcontroller kit is appropriate for software hackers looking to branch out into electronics, and has educational material to allow even middle-schoolers and high-schoolers (ages 12+) looking for a fun challenge to learn by doing, especially with the help of a techie parent! A microcontroller is a small computer on a single chip, including processing, memory, and inputs and outputs

4chan is an English-language image-based bulletin board website. Users generally post anonymously, with the most recent posts appearing above the rest. 4chan is split into various boards with their own specific content and guidelines. There are boards dedicated to a variety of topics, from Japanese animation and culture to videogames, music, and photography. Registration is not required, nor is it possible (except for staff).

BitTorrent is a protocol supporting the practice of peer-to-peer file sharing that is used to distribute large amounts of data over the Internet. BitTorrent is one of the most common protocols for transferring large files, and peer-to-peer networks have been estimated to collectively account for approximately 43% to 70% of all Internet traffic (depending on geographical location) as of February 2009

A collaborative discussion website. Articles are created and submitted by Kuro5hin's users and submitted to a queue for evaluation. Site members can vote for or against publishing an article and, once the article has reached a certain number of votes, it is then published to the site or deleted from the queue.The site has been described as "a free-for-all of news and opinion written by readers".

Slashdot is a technology-related news website owned by the US-based company Dice Holdings, Inc. The site, which bills itself as "News for Nerds. Stuff that Matters", features user-submitted and evaluated news stories about science and technology related topics.