Abstract: Systems and methods for obtaining and playing video advertisements in conjunction with play of video content use information about the viewability of an instantiation of a video player software application. An instantiation of the video player software application generates a viewability score which is intended to reflect a degree of confidence that the instantiation of the video player software application is located on a part of a webpage that currently appears on a user's display screen. Information used to generate the viewability score can be gathered during play of a video. The information used to generate a viewability score can include information about user performed actions and information that indicates the degree to which the user is engaged by a video.

Abstract: Systems and methods for generating a content score for a video that is indicative of how engaging the video is to viewers makes use of a modified completion rate factor. The modified completion rate factor indicates the percentage of viewers that played the video and that watched at least a predetermined number of second of the video. Other viewing factors may also be used to help generate the content score of the video.

Abstract: Systems and methods for obtaining and playing video advertisements in conjunction with play of video content make use of partner advertising providers to reduce the time required to identify and obtain the video advertisements. An instantiation of a video player software application receives and analyzes bids from partner advertising providers and selects a winning bid before a user issues a play command. As a result, it is often possible to immediately begin playing a video advertisement the instant the user issues a play command.

Abstract: Systems and methods for obtaining and playing video advertisements in conjunction with play of video content make use of partner advertising providers to reduce the time required to identify and obtain the video advertisements. An instantiation of a video player software application receives and analyzes bids from partner advertising providers and selects a winning bid before a user issues a play command. As a result, it is often possible to immediately begin playing a video advertisement the instant the user issues a play command.