Trailblaze

With Trailblaze, you can add breadcrumb navigational links to your WordPress theme by using the template tag, wap8_trailblaze(). This template tag can be added to the following templates:

• Archive Templates (categories, tags, post formats, custom post types, custom taxonomies, date based archives)
• Singular Templates (post, page, custom post type)
• Search Template
• 404 Template

For more information, please see this blog post.