This plugin enables you to set conditional menus per posts, pages, categories, archive pages, etc.
Show and hide widgets on specific posts, pages and sections of your site.
A Widget toolbox that adds visibility management and helps to control where widgets, sidebars and content are shown efficiently.
Widget Manager lets you control on which pages widgets appear via nice and easy interface. Show or hide widgets. Display relevant content on your page …
Widget Logic Visual Version lets you control on which pages widgets appear using WP's conditional tags without having to know how conditional tag …
A shortcode to display content based on context.