5. Computer-readable storage media having computer-usable instructions embodied thereon that, when executed, perform a method of controlling a search, comprising: retrieving a first list of sites and a second list of sites, wherein each list includes at least one site that is searched, wherein the at least one site that is searched includes at least one of a blog site or a website; storing the first list in the form of a first file and the second list in the form of a second file, wherein each file defines the at least one site that is searched, wherein each file includes a single favorites list, multiple favorites lists, a blogroll, or a pointer to an XML file or an OPML (outline processor markup language) file, and wherein sites specified in the second list are different than sites specified in the first list; determining a source of a search destination based upon a user login; logging-in to a system using user login information and entering site destination information into a first query, wherein the source of the search destination is automatically specified based on the user login information; executing a first search utilizing the first query according to filter data based on the first list, wherein the first query restricts the search to content of the site that is specified by the first file; upon searching the site, determining whether the site includes a list of other sites; when the site includes a list of other sites, then extending the first search to the other sites; and determining whether results of the first search are adequate or inadequate based on predetermined criteria that includes number of the results returned, type of the results returned, and source of the results returned; when the results of the first search are determined to be inadequate, performing a second search utilizing a second query according to filter data based on the second list, wherein the second query restricts the search to content of a second website or second blog site that is specified by the second file and other sites or favorite lists linked to the second blog site or the second website based on the site destination information.
11. The media of claim 5 , wherein the filter biases the first or second search based on one or more sites of the first or second list.