
StatusNet is the open source microblogging platform that helps you share and connect in real-time within your own domain. With StatusNet you can encourage collaboration, build and engage your community, and be in command of your brand.

Cloudera offers enterprises a powerful new data platform built on the popular Apache Hadoop open-source software package.

Nexty is an easy to use To Do list manager created using GTD principles. The core idea behind this software is simplicity, and to make a GTD tool that is the most easy to use.

Open source software for mind mapping and brainstorming, GTD, knowledge management and sharing, awards winner, compatible with Freemind/Mindmanager.

An open source web application meant to help manage & create invoices in a simple, straightforward way. Siwapp is not meant to solve all & every need of your business, neither it intends to end up as a full business manager application. The goal is to get just one thing right: Invoices. A basic need for every business.

ecoder is an open-source web-based code editor, with real-time color syntax highlighting, which allows multiple documents to be edited directly online at the same time.

Akvo creates and shares internet tools that help to provide clean water and proper sanitation to those who today have none. Akvo helps everyone to share knowledge, match more projects to funds, and simplify reporting. It works with people around the world who want to use these tools to improve people's health and living conditions quickly.

AtMail is an open source webmail client written in PHP, aims to provide a elegant Ajax webmail client for existing IMAP mailservers, with less bloat and a focus on an intuitive, simple user interface. The open source version of AtMail provides users with a lightweight, yet powerful webmail client. The software can be installed on a variety of platforms with ease and without the hassles that most webmail platforms impart.

phplist is an open-source newsletter manager. It is free to download, install and use, and is easy to integrate with any website.

Broadcast LIVE video from your mobile phone over 3G or WiFi onto your website. Or use your phone as a bluetooth webcam in Mac OS X. Free and Open Source. Works with Drupal.

Built with Ruby on Rails, LovebyLess open source project has all the basic features you will need to setup a basic social network.

Apatar is the leading provider of open source software tools for the data integration market. Apatar brings data integration to the companies who previously found proprietary solutions expensive and difficult to implement.

piwik is an open source (GPL license) web analytics software. It gives interesting reports on your website visitors, your popular pages, the search engines keywords they used, the language they speak, and so much more.

The Calais initiative seeks to help make all the worlds content more accessible, interoperable and valuable via the automated generation of rich semantic metadata, the incorporation of user defined metadata, the transportation of those metadata resources throughout the content ecosystem and the extension of it’s capabilities by user-contributed components.

Wikia's search engine concept is that of trusted user feedback from a community of users acting together in an open, transparent, public way.

BitNami stacks make it incredibly easy to install your favorite open source software. Application stacks include an open source application and all the dependencies necessary to run it, such as Apache, MySQL and PHP or Ruby. All you need to do is download the Stack, provide a few pieces of information when prompted by the installation wizard, and that's it. By the time you click 'finish', your new application will be ready to run.

Springnote is a service that has captured the essence of wiki. It works as a representative service of the web as a platform and the writable web. It has an easy Springnote editor with plug-ins and templates and it's simple to create various mashups using the Open API.

It is all about building up your own personal space, a personal record of all your work and experience, an aggregation of all content important to you - customised the way you want.