Knotable - Cut the noise out of busy email threads
Monkkee - Keep a private journal securely on the Internet – to provide a convenient user experience your...
Scrapbox - A new style of note-taking that lets you create, discuss, and learn together in one self-organizing space.
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.
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.
Draw.Chat - Anonymous real-time whiteboard with text and video chat.