This plugin supports indenting the order of categories.
Displays categories as a list or dropdown jump-menu. With advanced options to add CSS classes and modify the title .
Enhanced Folding Category List for Wordpress 2.8+
This plugin is the most effective plugin which easily display your posts and pages and category and also sitemap through shortcode on front end.
Lovely shortcodes for lovely websites.
This widget allows to add/update icons for category or icon for custom taxonomy.
It lists Categories in horizontal menu pattern.
[catelist] shortcodes with any post, page and widget.