by Denis Buka on WordPress.org
Creates navigation to next and previous posts based on the category or tag a visitor came from.

Front-end example
Creates navigation to next and previous posts specific to the category or tag a visitor came from. You can embed the navigation automatically or use a custom function addIntNav() in your template files. Customize the appearance with post thumbnails and labels. Swap next and previous post links mirror-wise. Bold links to the current category or tag. Optimized for use with caching plugins.
Features overview:
addIntNav(). My other plugins:
Links: Steaming Kettle Website Design & Video Production Studio