Wridea is a free application that allows you to collect and organize your ideas.

Your ideas are organized into categories and pages.

I see a great opportunity to organize your ideas by tag so that an idea could easily exist in more than one category. Additionally being able to share your ideas/pages with other users could be handy as well.

The application has a nice simplicity and makes it convenient to loosely organize your notes and ideas. Go check it out.

Technorati Tags: gtd, notepad, ideas, web 2.0, web2.0, web20, wridea