Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.
Prodeus - Track your time learning on YouTube to earn your free degree
BookmarkSheet - Your bookmarks in Google Sheets
Todo - Todo is a to-do and task list app.
Annotate.tv - Optimize your learning on YouTube