Microsoft Sticky Notes - A brand new Sticky Notes for Windows has arrived!

Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.

Notezilla - Colorful & powerful sticky notes app for Windows & Phones.

CherryTree - A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.

Stickies - Stickies is a PC utility written to replace Post-It-style notes left stuck to your monitor.

NoteFly - NoteFly is a small advance note taking application that allows you to create sticky notes.