RunaBook - RunaBook is a lightweight application that lets you create and organize notes, knowledge bases, and daily routines.
Readwise - Effortlessly rediscover and organize your Kindle highlights
Idea Notebook - Idea Notebook is an app that allows you to keep track of your logs business ideas and track as well as organize them.
Klib - Kindle & iBooks Highlights Manager
Monkkee - Keep a private journal securely on the Internet – to provide a convenient user experience your...
Clippings.io - Organize the notes you make on your Kindle