Collabpsing Blogroll allows you to put your blogroll on a page or in a post. The categories can be collapsed.

Adds a widget to display archive links using purely CSS-based collapsing.

This plugin uses Javascript based on MooTools framework to dynamically expand or collapse the yearly/monthly post archive listing.

This plugin uses Javascript based on MooTools framework to dynamically expand or collapse the categories listing.

This plugin uses Javascript to dynamically expand or collaps the set of months for each year and posts for each month in the archive listing.

This plugin modifies the categories block to add new features such as collapse and expand categories and subcategories, order, etc. It also allows you to limit the number of categories and subcategories that can be selected in the edit post page.

This plugin adds a new widget where you can view your old posts by expanding certain years and months.