Contextual Advertising For Video and Audio Media

A system and method for serving contextually relevant advertisements is provided, including monitoring a media stream to indentify an audio or video asset, extracting and storing corresponding text from the asset, retrieving stored text when the asset is selected by a user, analyzing the text and identifying relevant advertisements that are then displayed to a user as a clickable text next to the playing video or audio asset. In further embodiments, the method may include the steps of retrieving a variable length portion of the text corresponding to the portion of the asset being played by the user, analyzing the portion of the text to identify advertisements relevant to the corresponding portion of the asset, displaying the advertisements during the playback of the portion of the asset, and then repeating the steps until the playback of the whole asset is completed.