100. Elastix
Elastix is appliance software for Asterisk-based PBX systems. It combines a lot of the most popular Asterisk tools with a unique interface, utilities, and add-ons for a complete open-source VoIP system. Operating System: OS Independent
101. ePresence Interactive Media
Developed at the University of Toronto, ePresence claims to be the world's first open source webcasting and conferencing solution. It is designed to support conferences, online meetings, seminars, and demonstrations. Operating System: Windows, Linux
102. Mumble
With Mumble, you can easily talk to other players while gaming, and the voices seem to come from the on-screen characters. Plus, the echo cancellation feature means you wont get those annoying reverberation effects from your microphone picking up the sound from your speakers. Operating System: Windows, Linux, OS X.
103. 7-zip
7-zip offers higher than normal compression ratios and supports multiple file formats. However, in order to take advantage of its strong AES-256 encryption capabilities, you'll need to create either 7z or zip files. Operating System: Windows, Linux, OS X.
104. KGB Archiver
One big benefit of using this compression utility is that it encrypts files with AES-256 encryption automatically. It also supports multiple file formats and nine different languages (but not Russian, which seems odd for an app named after the KGB). Operating System: Windows.
105. PeaZip
One of the most flexible compression utilities available, PeaZip currently supports more than 90 different archive file formats. It also supports multiple encryption standards and even offers a two-factor authentication option for maximum security. Operating System: Windows, Linux, OS X.
106. Alfresco
Built by a team that includes one of the co-founders of Documentum, Alfresco also boasts an impressive list of Fortune 500 users. In addition to web content management, it provides document management, collaboration, records management, and image management abilities. Operating System: Windows, Linux.
107. Archon
Winner of several awards, Archon simplifies the process of creating a searchable Web site to house archival materials. Administrators can input or edit information via Web forms, and the software automatically uploads and publishes the data. It's currently being used by more than 40 universities, zoos, historical societies, and other institutions. Operating System: OS Independent.
108. BIGACE
While BIGACE is used by many smaller organizations, it's multi-site, multi-language, and multi-user capabilities make it a possibility for larger enterprises looking for a Web CMS. Key features include a WYSIWIG editor, templates and stylesheets, and permission management. Operating System: Windows, Linux, Unix.
109. Bitweaver
Bitweaver's claim to fame is a modular design that lets you pick and choose which features you need. Those features include articles, wikis, image galleries, calendar, user management, and more. Operating System: OS Independent.
110. Daisy CMS
Java-based Daisy can be used for Web sites, intranets, product documentation, knowledge bases, and more. It includes both a document repository and a wiki. Operating System: OS Independent.
111. Devproof Portal
Devproof includes modules for blogging, articles, downloads, and more that make it easy to set up your own portal. It's easy to use, but not as popular as some of the other content management systems. Operating System: OS Independent.
112. DokuWiki
Because it uses plain text files, DokuWiki doesnt require a database in order to run. Its simplicity and usability make it ideal for small organizations. Operating System: OS Independent.
113. Drupal
Drupal offers a similar, but slightly different feature set than Joomla. Key features include a unique collaborative book tool, role-based permissions, blogging, friendly URLs, and a very active community for support. Operating System: OS Independent
114. Family Connections
This app walks beginners through the process of creating a family Web site. It makes it easy to include a photo gallery, message board, calendar, address book, news, recipes, and more on a private site. Operating System: OS Independent
115. Fedora Commons
Fedora Commons allows you to manage, preserve, and link different types of digital content. For example, you can use it to create an archive of video, audio, and text files on a particular topic which users can then search or comment on. Operating System: OS Independent.
116. FOSWiki
A split from the TWiki project, FOSWiki distinguishes itself with support of embedded macros to enhance content and allow end-users to create their own applications. The Web site includes considerable support for new users, as well as a number of extensions to the basic application. Operating System: OS Independent.
117. Joomla
Downloaded nearly 14 million times, Joomla is an incredibly popular content management system. Even if you have very little technical expertise, Joomla can help you keep track of all the pages on your Web site. Operating System: OS Independent
118. Liferay
Designed for enterprise users, Liferay includes more than 60 tools for web publishing, content management, collaboration, and social network. In addition, it features an SOA framework, single sign-on, multi-language support, and advanced search and tagging. Operating System: OS Independent.
119. Magnolia
Used by governments and Fortune 500 companies, Magnolia is both easy to use and highly flexible. Key features include instant inline editing, role-based user management, full-text search, multi-language support, Java content repository, and unlimited scalability. The commercial Enterprise Edition adds a number of features as well as paid support. Operating System: Windows, Linux.
120. MediaWiki
Originally written for Wikipedia, MediaWiki allows collaborative editing on documents within a familiar interface. It was designed to be run on a large server farm and requires Apache, PHP, and MySQL. Operating System: Windows, Linux/Unix, OS X.
121. MindTouch
Called the "Best product alternative to Microsoft Sharepoint and IBM Lotus" by Forrester Research, MindTouch offers intuitive wiki collaboration and is used by millions of people around the world. The commercially available Standard and Enterprise editions add desktop productivity tools, database and CRM integration, and other enterprise functionality to the open-source core. Operating System: Windows, Linux.
122. PHP-Nuke
This content management tool boasts a large, active user community and numerous add-ons. It provides a complete solution for developing a highly interactive Internet or intranet site. Operating System: Windows, Linux/Unix, OS X.
123. TikiWiki
This Groupware/Content Management System supports wikis, forums, blogs, image feeds, newsfeeds, calendars, and much more. Its won several awards and vast amounts of help are available on the Web site. Operating System: OS Independent
124. TWiki
As a structured wiki, TWiki combines the benefits of a wiki with the benefits of a database. It can be used for project management, document management, as a knowledge base, or to collaborate on virtually any type of content for intranets or the Internet. Operating System: OS Independent.
125. TYPO3
Downloaded more than 4 million times, the TYPO3 content management system combines a rich feature set with usability. Key features include multimedia support, detailed user permissions, and scalability. Operating System: Windows, Linux, Unix.
126. WebGUI
Described as "modular, powerful, secure, and user-friendly," WebGUI makes it easy for small organizations to run very complex Web and intranet sites. Its currently used by more than 10,000 site owners. Operating System: Windows, Linux/Unix, OS X.
127. XOOPS
Written in PHP, the XOOPS content management system makes it easy to create a Web site with dynamic content. The name is short for eXtensible Object Oriented Portal System, and it relies on a MySQL database to organize content. Operating System: OS Independent.
128. CitrusDB
Citrus is a customer care and billing solution aimed at subscription-based products such as Internet service, telecommunications, and consulting. It tracks customer information, service records, custom billing cycles, and support tickets. Operating System: OS Independent.
129. Covide
Covide offers web-based groupware and customer relationship management (CRM) in a single package. It can also integrate with PBX systems to provide VoIP services. Operating System: Windows, OS X, Unix.
130. Daffodil CRM
Daffodil CRM provides a complete picture of the entire customer lifecycle and includes tools for sales force automation, sales forecasting, efficient opportunity tracking, customer satisfaction, and performance management. The Daffodil site primarily promotes the commercially supported version, but you can download the free, open-source version from SourceForge. Operating System: OS Independent.
131. hipergate CRM
Hipergate is a Java-based suite that includes both CRM and groupware collaboration capabilities. Key features include group calendar, discussion forum, FAQ manager, contact management, import from Microsoft Office and Outlook, eCommerce, e-mail and Web site templates, and more. Operating System: OS Independent.
132. openCRX
This CRM solution provides account management, price and product management, groupware, and issue tracking capabilities. You can access it through any browser, and it integrates with most ERP and database applications. Operating System: OS Independent.
133. OpenEMM
Like phplist (below), OpenEMM offers only e-mail marketing, not full CRM capabilities. However, it does offer advanced reporting capabilities, as well as multi-language support, target group marketing, and an intuitive browser-based interface. Operating System: Windows, Linux.
134. Orange Leap
Orange Leap claims to be the first full-featured CRM package aimed at non-profits (in this case, the C in CRM stands for "constituent" not "customer"). It's Web-based and includes profile personalization (to make it easy to tell donors from volunteers), correspondence and payment history, and built-in reporting and scheduling. Operating System: Windows.
135. phplist
While it's not a full-featured CRM system like most of the apps in this category, phplist is a very good newsletter manager. Key features include double opt-in subscription management, list segmentation, click tracking, and bounce management. Operating System: Windows, Linux
136. SellWinCRM
This CRM tool is designed primarily for your sales force rather than your customer service staff, and includes a phone client that is very helpful for mobile employees. Despite the "Win" in the name this is a multi-platform tool; in this case, "Win" refers to actual sales wins, not Windows. Operating System: OS Independent.
137. SourceTap
Like SellWin, SourceTap is also primarily a sales automation tool, though it does include some issue tracking capabilities. In addition to the open-source version, it's available in several commercial versions or as a hosted app. Operating System: Windows, Linux.
138. SugarCRM
This award-winning app offers sales force automation, marketing automation, customer support, reporting, and collaboration. In addition to the open-source community edition, it's available in two commercial editions. Operating System: Windows, Linux, OS X, Solaris.
139. vtiger CRM
Aimed at slightly smaller organizations, vtiger combines sales force automation, marketing automation, customer service, inventory management, calendaring, and activity management. Plug-ins provide interoperability with Outlook and Thunderbird. Operating System: Windows, Linux.
140. XRMS CRM
In addition to CRM and sales automation capabilities, XRMS also offers some basic BI functionality, RSS feeds for new records, and computer telephony integration. Operating System: Windows, Linux, OS X.
141. Firebird
Firebird is a full-featured, SQL-based relational database. It can scale to serve the needs of a large enterprise, and its easy to configure and maintain. Operating System: Windows, Linux/Unix, OS X, Solaris.
142. PostgreSQL
This object relational database management system bills itself as "the worlds most advanced open source database." PostgreSQL was derived from the Berkeley Postgre DMS, but it replaces the PostQuel query language with a type of SQL. Operating System: Windows, Linux/Unix, OS X, Solaris.
143. BleachBit
Like Eraser (below), BleachBit can completely erase files, but it also includes a number of other features to help protect your privacy and speed up your system. For example, it can erase your cache, remove your browsing history and cookies, clean up junk left by more than 50 applications, and much more. Operating System: Windows, Linux.
Also known as "DBAN," Darik's Boot and Nuke allows you to create a boot disk (CD, DVD, thumb drive, or even an old floppy) which will completely erase all the drives it can detect on your system. It's a great tool if you're getting rid of an old computer, but not as helpful if you're just deleting a few files. Operating System: OS Independent.
145. Eraser
If you need to erase only a few filesperhaps your financial or tax records, work files, or as the website suggests, bad self-written poetryEraser is the tool for you. It overwrites deleted data multiple times, making it nearly impossible to retrieve the "erased" files. Operating System: Windows.
146. Wipe
Wipe erases all traces of deleted files from your hard drive so that they can't be retrieved. It relies heavily on the work of Peter Gutmann, one of the foremost experts in the field. Operating System: Linux.
147. Apatar
This data integration tool's graphical interface makes it easy to create mashups without writing code. You can also use Apatar to merge, synchronize, and replicate data from various sources or to move data from third party applications to your internal systems. Operating System: OS Independent.
148. DataCleaner
DataCleaner profiles, validates, and compares data in order to ensure data quality. Its claim to fame is its simplicity and low cost compared to other master data management and DW applications. Operating System: OS Independent.
149. KETL
KETL is an extract, transform, load (ETL) tool for data integration. It is highly scalable and integrates well with most security and data management tools. Operating System: Linux, Unix.
150. LucidDB
Specifically designed for data warehousing and business intelligence, the LucidDB RDBMS was built from scratch to handle high-performance data integration and sophisticated query processing. Key features include intelligent indexing, star join optimization, and advanced connectivity and extensibility. Operating System: Windows, Linux.