SproutCore is a framework for building applications in JavaScript with remarkably little amounts of code.

It can help you build full “thick” client applications in the web browser that can create and modify data, often completely independent of your web server, communicating with your server via Ajax only when they need to save or load data.

Like other JavaScript frameworks, SproutCore has ready to use visual widgets like list views, button views, and forms. But it also has other functions such as an in-memory database (that can integrate with client-side offline storage), bindings, property observing, and controllers.

SproutCore uses Ruby to generate static HTML and JavaScript files, you are not tied to Ruby or Rails in production. SproutCore runs in the browser, your production system can use whatever backend you want

ClockingIT is an open source task – time tracking & project management application (normall a free hosted app. & source code is available) built with Ruby on Rails.

With a slick Ajaxed interface and providing information in every step of creating projects or tasks, ClockingIT is a very user-friendly application.

It is a complete solution for managing projects within a team as it offers nice tools like an integrated wiki, forum & a Facebook-like chat within team members.

Features of this free Ruby on Rails application:

• no restrictions or limits
• time tracking & reports
• milestones & due dates
• tagging & search
• timeline & activity log
• notifications, rss & iCal
• integrated wiki, forum & chat
• multilanguage

Community Engine is a free, open-source social network plugin for Ruby on Rails applications. Drop it into your new or existing application, and you’ll instantly have all the features of a basic community site.

Features of this social network plugin:

• Authentication (sign up, log in)
• User profiles
• User search
• Blogs with tagging, categories and rich text editing
• Photo uploading and tagging
• “Clippings” – visual bookmarks
• Commenting and comment notification by e-mail (Blogs, profiles, photos, and clippings can be commented)
• Forums
• Friendships and activity feeds
• Favoriting of clippings and blog posts
• And more!

Snipplr is a website where you can store / share your code snippets and find the ones that are already shared by other users.

It is great to find real-world working code examples with an organized interface which saves a lot of time.

Snipplr covers almost every language from ASP, ASP.NET, PHP to Ruby, Django or AS3.

A feature I like is seeing the codes shared by a specific user (nice feature for following users whose coding style is much familiar to you).

Snipplr is absolutely a must-bookmark for a developer.

It is a time consuming process to create an admin interface with standard functions such as add-edit-delete-update again and again.

ActiveScaffold, a Ruby On Rails plugin handles all the ActiveRecords smartly. It adds add-edit-delete-update functionality with an Ajaxed interface & sorting, searching and pagination support.

ActiveScaffold features:

• AJAXified table interface for creating, updating, and deleting objects
• Automatic handling of ActiveRecord associations
• Sorting, Search and Pagination
• Graceful JavaScript degradation
• RESTful API support (XML/YAML/JSON)
• Sexy CSS styling and theming support
• More extension points than you can shake a stick at
• Guaranteed to work on Firefox 1+, IE 6+ and Safari 2+
• Released under the MIT License, the same one as Rails itself, so you can use it freely in your commercial applications.

Datetime Toolbocks is a JavaScript library with advanced date parsing that generates date data from the text passed. A simple example would be "today", "next friday", or "last monday".

This smart date parsing JavaScript library also has a DHTML based date selector which makes the library vey functional for users who would prefer text or visual input selection.

DateTime Toolbocks currently supports Ruby on Rails as the development platform.

Radiant is an open source content management system built with Ruby on Rails. It is built for small developer teams other than the end-users as it requires programming knowledge.

With a very simple interface, Radiant offers flexibility when creating the design & content. 3 parts: pages, snippets (like PHP includes) and layouts create the core of the system.

It offers a flexible site structure where pages can be arranged according to any hierarcy.

Radiant has a custom template language named Radius (similar to HTML) which can be used inside pages, layouts to include content from other pages or display content conditionally & more. It also has an intelligent caching mechanism which helps serving pages faster while ensuring the content is up-to-date.

AJAX Chat is a powerful, open source, fully customizable web chat software built with JavaScript, PHP and MySQL.

AJAX Chat supports voice chat that is powered by Flash & Ruby (sound support is optional).

This free AJAX chat software integrates easily with PHP community softwares like phpBB, MyBB, PunBB, SMF, vBulletin and sample integrations are provided with the software.

Some beautiful features include

• Multilanguage support
• Multiple channels
• Private messaging
• Private channels
• Invitation system
• Kick or ban offending users
• Online users list with user menu
• Emoticons / Smilies
• Flood control
• Possibility to delete messages inside the chat
• IRC style commands
• Possibility to define opening hours for the chat
• Possibility to enable/disable guest users
• Template system
• Standards compliance (XHTML 1.0 strict)
• Realtime monitoring and logs viewer
• Easy integration into existing authentication systems
• Well commented source code

Ajax Chat is developed with security in mind and it is strong against code injections, SQL injections, cross-site scripting (XSS), session stealing and other attacks.

Redmine is a flexible project management web application. Written using Ruby on Rails framework, it is cross-platform and cross-database.

With a plain interface which makes the use easier, Redmine has most of the features a project managemnt software must have like multiple projects, role based access control, wiki & file management.

Redmine features:

• Multiple projects support
• Flexible role based access control.
• Flexible issue tracking system
• Gantt chart and calendar
• News, documents & files management
• Feeds & email notifications.
• Per project wiki
• Per project forums
• Simple time tracking functionality
• Custom fields for issues, projects and users
• SCM integration (SVN, CVS, Mercurial, Bazaar and Darcs)
• Multiple LDAP authentication support
• User self-registration support
• Multilanguage support
• Multiple databases support

Redmine is in beta status yet and improved regulary.

Bitnami can be called as an installation framework that makes it easier than ever to try the latest and greatest versions of popular open source software. Just install, play with the software, and uninstall when you are done. The stacks are pre-configured, self contained, and will not interfere with the rest of your system.

What is a stack?

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.

Softwares supported (for now, new applications are added frequently that are decided with the community polls):

 Infrastructure
- LAMPStack
- MAMPStack
- RubyStack
- WAMPStack
Blog
- Roller
- WordPress
Bug-Tracking
- Mantis
- Redmine
- Trac
CMS
- Alfresco
- Drupal
- Joomla!
- KnowledgeTree
ECM
- Alfresco
- KnowledgeTree
Forum
- phpBB
Poll Management
- Opina
Portal Server
- Liferay
Wiki
- DokuWiki
- MediaWiki
eLearning
- Moodle