37. A method for serving base content and content that is relevant to the base content, the content being referred to as the relevant content, the method comprising: parsing the base content to form parsed base content; extracting a set of query units from the parsed base content based on query units in a unit-dictionary module, wherein the query units extracted from the base content are referred to as the extracted-query units; ranking the extracted-query units based on relevance scores and revenue-generation amounts for the query units extracted from the base content: comparing the extracted-query units with query units for the relevant content to determine matches between the extracted-query units and the query units for the relevant content; forming at least one association between the base content and the relevant content when at least one of the extracted-query units match at least one of the query units for the relevant content; and providing the base content with the relevant content based on the association, wherein the relevant content includes at least one advertisement comprising at least one of a sponsor link, an integrate link, or an inside link within the base content.
37. A method for serving base content and content that is relevant to the base content, the content being referred to as the relevant content, the method comprising: parsing the base content to form parsed base content; extracting a set of query units from the parsed base content based on query units in a unit-dictionary module, wherein the query units extracted from the base content are referred to as the extracted-query units; ranking the extracted-query units based on relevance scores and revenue-generation amounts for the query units extracted from the base content: comparing the extracted-query units with query units for the relevant content to determine matches between the extracted-query units and the query units for the relevant content; forming at least one association between the base content and the relevant content when at least one of the extracted-query units match at least one of the query units for the relevant content; and providing the base content with the relevant content based on the association, wherein the relevant content includes at least one advertisement comprising at least one of a sponsor link, an integrate link, or an inside link within the base content. 39. The method of claim 37 , further comprising retrieving the association from memory to serve the base content with the relevant content if a user requests the base content.