Remember The Milk - Remember The Milk is a task and time management application for mobile devices.

Todoist - Todoist is a to-do list that helps you get organized, at work and in life.

OnlineNotepad.org - Free browser-based text editor

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

aNotepad - anotepad.com is an online text editor that you can write notes and anotepad also has great stability

EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.