Skype is a freemium voice-over-IP service and instant messaging client, developed by the Microsoft Skype Division. Is a hybrid peer-to-peer and client–server system. It makes use of background processing on computers running Skype software, and this is reflected in Skype's original proposed name of Sky Peer-to-Peer.
SourceForge is a web-based source code repository. It acts as a centralized location for software developers to control and manage free and open source software development. It was the first to offer this service for free to open source projects. The website runs a version of SourceForge Enterprise Edition, forked from the last open-source version available. As of May 2013, the SourceForge repository hosts more than 300,000 projects and has more than 3 million registered users, although not all are active.
GitHub is a web-based hosting service for software development projects that use the Git revision control system. GitHub offers both paid plans for private repositories, and free accounts for open source projects. As of May 2011, GitHub was the most popular code repository site for open source projects.
RubyForge is a collaborative software development management system dedicated to projects related to the Ruby programming language. It was started in 2003 by Ruby Central in an effort to help the Ruby community by providing a home for open source Ruby projects. As of November 2009, it hosts over 8,000 projects and has over 41,000 registered users
The Mozilla Foundation is a non-profit organization that exists to support and lead the open source Mozilla project. Founded in July 2003, the organization sets the policies that govern development, operates key infrastructure and controls Mozilla trademarks and copyrights. It owns a taxable subsidiary: the Mozilla Corporation, which employs many Mozilla developers and coordinates releases of the Mozilla Firefox web browser and Mozilla Thunderbird email client. The subsidiary is 100% owned by the parent, and therefore follows the same non-profit principles.
Ubuntu is a Debian-based Linux operating system, with Unity as its default desktop environment (formerly GNOME). It is based on free software and named after the Southern African philosophy of ubuntu (literally, "human-ness"), which often is translated as "humanity towards others" or "the belief in a universal bond of sharing that connects all humanity".
The NetFPGA is an open source hardware and software platform designed for research and teaching. Currently there are two platforms: NetFPGA-1G (1G) and the NetFPGA-10G (10G). These platforms allow researchers, and students to build prototypes of high-speed, hardware-accelerated networking systems. As of 2011 the NetFPGA platforms have been used in over 66 academic papers.
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
Netduino is an open-source electronics prototyping platform based on the .NET Micro Framework. It uses a 32-bit ARM-microcontroller. The Netduino boards (except the Mini and Go) are designed to be pin-compatible with most Arduino shields.