1. A computer-implemented method for responding to an dynamic content request in regard to the display of content to a user, the method comprising each of the following as executed on a computer system: identifying one or more content classifications of the content; detecting a current trend based on the dynamic content request volume (DCRV) in at least one of the content classifications of the content; identifying a set of candidate content portfolios from a plurality of trending content portfolios, wherein the trending content portfolios are identified only upon the detection of a current trend based the DCRV of the at least one content classifications; selecting a content portfolio from the set of candidate content portfolios; obtaining a dynamic content creative of the selected content portfolio; and providing information regarding the obtained dynamic content creative in response to the dynamic content request.