Ruby on Rails is a powerful web framework that helps creating web applications easier, faster & writing an organized code.
There are lots of websites that use it including popular ones like Twitter, Basecamp, AboutUs & many more.
Also, Ruby on Rails powers some amazing open source web applications which you may want to use directly or improve further.
Here is a well-categorized 23 open source Ruby on Rails applications:
(Note: There are few Merb apps. in the list too which we believe is ok considering Rails & Merb are getting into the same package with Rails 3.)
Project, Task & Time Management
Notes is an easy to use to-do-list & notes manager application.
It is possible to create pages & make them public (if wanted) or create simple notes. With the Jabber listener support, you can eevn add new notes from your Google Talk by chatting with a bot.
Reminders can be set for each note that can be sent to you by e-mail or SMS (via a Twitter bridge).
A to-do-list manager with a clean interface. Tracks lets you to categorize, prioritize, schedule & star items for a better usability (see WRD post).
Interface is Ajaxed & many tasks are done by drag'n drops. The application has multi-user support & comes with a built-in web-server for user who want to install it to their computers.
It allows keeping track of all your tasks and the time you spend on them. With just a click, the timer can be started (see WRD post).
But not only that. There is a built-in project management system with milestones, reports & tasks.
ClockingIT tracks/logs every change to the documents & can send notifications via e-mail, RSS or iCal.
It is normally a free hosted application & source can be found here.
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