Here is a good note taking application for KDE known as Basket. It is an all-purpose note taker application.

Features-

• Easily take all sort of notes
• Collect research results and share them
• Centralize your project data and reuse it
• Quickly organize your thoughts in idea boxes
• Keep track of your information in a smart way
• Make intelligent To Do lists
• And a lot more...

Screenshots

The speciality of this app is that it has a good editor which allows you to save images in notes, add styles to text, etc.

Best part of this is that all notes are composed in HTML formats. So no more writing your blog posts directly in the form. Compose here then copy and paste. ;) Enjoy

Official Website: basket.kde.org

Available in Fedora Repository: yum install basket