Improve your writing by producing (and sharing for review?) staged versions. Drafting with Draft.
Textivate allows you to automatically create activities which encourage students to interrogate texts more closely, thereby improving their understanding. Copy and paste your text, choose from a range of activities, done!
Plan, organise, brainstorm and collaborate with others using bulletpointed lists in Workflowy.
Organise, summarise and structure textual information using Knowcase.