xBreadcrumbs (Extended Breadcrumbs) is a jQuery plug-in to create categorized breadcrumbs for your site. This may be useful if your website has a deep structure and you want allow your visitors to quickly navigate through one section of the site to another. xBreadcrumbs works with unordered lists (UL/LI) which would make your breadcrumbs fully optimized for search engines. An SEO freindly breadcrumb has many benefits.