These deal with how search engines show the descriptions relating to a SERP listing.
Expanded snippetshot! 02/07/2009 Hits: 757
Google 2006 - A system provides a list of search results, where one of the search results in the list of search results includes a snippet from a corresponding search result document. The system receives selection of the snippet and provides an expanded snippet based on the selection of the snippet. The expanded snippet includes the snippet and other text from a subset of the search result document.