Collabtive is web based project management software. Simple and easy.
Organize your thoughts with ThoughtStack!
Entorno Colaborativo
Outlook macros for implementing GTD
Daily Task Management Software with Report Generation
versioned mindmap draggable web of lists in lists for all your ideas
PHP & MySQL/SQLite -based Project Management System
Helps for better management of office mails at central mailroom
Personal information manager. Free, opensource. Powerful and simple.
Plugin to allow search from multiple Freemind maps
Extended desktop Markdown and Todo.txt editor for Windows
Piggydb helps you have more fun with knowledge creation.
Cross Platform Sticky Note App For The Desktop
Where do you want to shop today? Deluxe Manager for Shoppinglists.
Open Source, tasks, bug tracking, agile scrum, timesheet, wiki
Adam - information management platform
Personal organizer focused on usability and user productivity
A lightweight but advance note taking application
Simple opensource organizer, inspired by todos.txt and markdown