Schmick Map [beta] is an element that creates Google Maps markers from custom post types, works best with Impreza and Zephyr WordPress themes. Supports filtering by category. Has bells and whistles and costs only $35/year. Also, this plugin is developer-friendly. If you have any suggestions, drop me a message via homepage contact form.

Better Breadcrumbsis a plugin that adds breadcrumbs element to Impreza/Zephyr WordPress theme for custom post types with customizable archive link.