Microsoft released a new service in the cloud "Group Policy Search," that help you easily find existing Group Policies and share them with your colleagues. The site also contains a Search Provider for Internet Explorer 7 and Internet Explorer 8 as well as a Search Connector for Windows 7.
In search box you can see search string "wallpaper" and below that're search suggestions coming from database. On lower left corner you see search results and first result is automatically displayed on right hand side. The search phrase has been highlighted and in GP tree displayed policy is marked bold.
Using "Tree" menu item you can switch to "registry view" where you can see corresponding registry key/value, or you can reset whole tree to beginning view. In "Filter" menu, you can specify for which products you want to search. In "copy" menu you can select value from results that you want to copy. Usually "URL" or "Summary" is used (of course you can easily select and CTRL+C the text from GUI as well). In "settings" menu you can add search provider and/or Connector.
More Info: Group Policy Search