Manage projects through lists

Some people love to manage projects using lists.  Lists allow you to add list items, reorder and reprioritise, colour-code, tag, debate, add checklists to and move them to other lists.  The possibilities are endless.  If you hate mind mapping but seek an online way to order and update your life, these apps might be some of your new best friends:

Trello organises projects using digital post-its you can order, cluster, hold conversations about and stick images on.  

Workflowy offers flexible, taggable, collapsible lists to help record, organise and prioritise your thoughts, notes and tasks.

Google Keep offers a simpler way of achieving many of the same things as Trello, including grouping of notes by tags, but unlike Trello, it does not support working with others and discussing or commenting on posts.