Annotate.tv - Optimize your learning on YouTube
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Slid - Capture knowledge from online videos, courses, and webinars
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Simply.Digital - Goals & Tasks - Todo list to track your time & help set meaningful deadlines
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.