Ta-da is web application for making lists.
Ta-da Lists is a product of 37signals, a firm founded by Jason Fried, Carlos Segura, and Ernest Kim.
It is extremely simple, free, and can be shared. It works in most web browsers as well as on the iPhone.
Ta-da List is completely easy to use. It is clean, simple, and straightforward. Simply type in the name of the list and start adding items. When an item is completed or is no longer needed on the list, checking the box moves the item to an area below the list and reduces the print size. Lists may be edited, reordered, or shared. To share, users simply add the email addresses of those they wish to share with, or they can make their lists public with a link provided by the site.
Registration requires a username, full name, email address, and password. Once entered, users are immediately directed to log in.
Ta-da Lists is completely free of any fees.
This application may be used by anyone, from students to homemakers to executives to create lists for anything. The sharing option is particularly welcome for those who create lists that they wish to allow others to access.