Jira may be extremely sluggish and require a large amount of memory on the client side.
Smarter Every Day - Smarter Every Day is a channel run by Destin, who is a University of Alabama engineer who provides in-depth analysis videos of various scientific and engineering marvels of the world around us.
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.
cgmasters - CG Masters is an art training platform for everything Blender. We offer high quality and large-scale training courses as well as many free video tutorials on all topics, including modeling, texturing, animation, game creation, and 3D printing.
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.
Khan Academy - Khan Academy offers online tools to help students learn about a variety of important school subjects. Tools include videos, practice exercises, and materials for instructors. Read more about Khan Academy.
Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.