Wikiquote - A free quote database built collaboratively using Wiki software, a sister project to Wikipedia.
Gone - An ephemeral to-do list
Quotefancy - Quotefancy is on a mission of turning inspiring quotes into beautiful wallpapers.
Streaks - The to-do list that helps you form good habits.
Brainyquote - Database of quotations by topic or author.
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.