mosseh

For more information see http://www.amoss.me.uk/tag/selective-reading/
Features
<ul>
<li>Category widget is updated with show/hide links for each category.</li>
<li>Works for unregistered users (using cookies)</li>
<li>Works for hierarchical categories</li>
</ul>
TODO/Planned Features
<ul>
<li>AJAX Reload post list after change of selection (currently refreshes whole page)</li>
<li>Configuration for contents of show/hide etc.</li>
<li>Hide links when javascript is disabled (plugin depends on javascript)</li>
<li>Tooltip when first clicked hide or show</li>
<li>Strikethrough category name when hidden</li>
<li>Notify when can’t unhide child due to hidden parent</li>
<li>Clearer indication of hierarchical hiding when hierarchical display is disabled?</li>
<li>Better error checking</li>
<li>Autoformat code</li>
<li>Support for WP super cache – does not currently function for unregistered users with this plugin enabled</li>
</ul>

Selective Reading

Allows website visitors to deselect categories they don't want to see on your blog.

JohnnyPea

It adds extra option fields to the user profile page where user can select the categories he wants to exclude from the site. You can allow excluding from the “Home page”, “Archive pages (excluding category archives)” or “Feeds” and also you can set which categories can users select for excluding. You will find all these setting on “My Category Excluder Settings” page in your admin panel.
It is really easy to use. User just selects the categories he wants to exclude on the “Your Profile” page in “Exclude these categories from the site” section and hits the “Update Profile” button.
I am open to suggestions to improve the plugin !

My Category Excluder

This plugin allows your registered users to exclude some categories from the queries on your site.

Selective Reading vs My Category Excluder