Microsoft Whiteboard - The canvas where ideas, content, & people come together.
Walling for Windows - Visual walls for your ideas and projects. Now on Windows.
Whimsical - The visual workspace for teams.
Jekyll - Jekyll is a simple, blog aware, static site generator.
Milanote - Milanote is a note taking app for creative work.
ZeroBlog - Blogs maker on Zeronet , a distributed network