WPReadability
Displays readability level for your posts and pages.
Plugin tag: Readability
Easyread – make your blogs more readable
Easyread This plugin splits large paragraphs up automatically by a specific number of sentences.
HeadlineEngine
What makes a good headline? Get instant headline analysis based on readability, length, and powerwords.
LH Nominate This
Allows users to republish readable extracts of other webpages on their own site.
Blogpatcher SEO
Blogpatcher SEO: The #1 WordPress SEO and content optimization plugin. Make sure your pages and…
Simple Reading Progress Bar
A simple and easy to custom progress bar at the top of your posts!