7. A system, comprising: one or more network devices, each having stored thereon a plurality of multimedia content; and one or more other network devices, each other network device operates to access at least some of the plurality of multimedia content, and to perform actions, comprising: performing a plurality of class-dependent search queries for multimedia content; receiving multimedia content results for each of the plurality of queries including content information about each of multimedia content results; employing the content information to identify a source for each of the multimedia content result; employing a weighted citation network of relationships based on the identified source for each multimedia content to identify authority scores for each source within the weighted citation network, where the citation of the multimedia content is determined based on detecting that the multimedia content is copied instead of linked from one network location to an other network location; receiving a class-dependent search-query for multimedia content; and employing the identified authority scores to rank order a display of a search-query result.
7. A system, comprising: one or more network devices, each having stored thereon a plurality of multimedia content; and one or more other network devices, each other network device operates to access at least some of the plurality of multimedia content, and to perform actions, comprising: performing a plurality of class-dependent search queries for multimedia content; receiving multimedia content results for each of the plurality of queries including content information about each of multimedia content results; employing the content information to identify a source for each of the multimedia content result; employing a weighted citation network of relationships based on the identified source for each multimedia content to identify authority scores for each source within the weighted citation network, where the citation of the multimedia content is determined based on detecting that the multimedia content is copied instead of linked from one network location to an other network location; receiving a class-dependent search-query for multimedia content; and employing the identified authority scores to rank order a display of a search-query result. 11. The system of claim 7 , wherein the content information comprises at least one of a “last-modified” date or image modification information, and wherein the “last-modified” date or image modification information is used to identify a source ordering of multimedia content within the citation network.