"Breadcrumbs" or "breadcrumb trail" is a navigation aid used in user interfaces. It allows users to keep track of their locations within programs or documents.

http://en.wikipedia.org/wiki/Breadcrumb_%28navigation%29

There are three types of web breadcrumbs:

  • Path: path breadcrumbs are dynamic and show the path that the user has taken to arrive at a page.
  • Location: location breadcrumbs are static and show where the page is located in the website hierarchy.
  • Attribute: attribute breadcrumbs give information that categorizes the current page.