Abstract: Disclosed examples access first impression data representative of first impressions collected by an impression monitor system, the first impressions corresponding to the media accessed at a plurality of client devices; generate a panelist impressions composition by removing at least one duplicate impression from second impression data, the second impression data representative of second impressions logged by meters installed at the client devices, the duplicate impression corresponding to one or more accesses to the media represented in both the first impression data and the second impression data for a same audience member; determine an error value for the media based on the panelist impressions composition and a database proprietor impression composition, the database proprietor impression composition provided by a database proprietor for the media; and determine an error-corrected impression composition based on the error value and the panelist impressions composition.

Abstract: An example apparatus includes: at least one memory; instructions in the apparatus; and processor circuitry to execute the instructions to: access a cookie at a client device, the cookie including a priority listing indicative of an order in which beacon requests are to be sent to ones of a plurality of database proprietors; cause a first beacon request to be sent to a first database proprietor server, the first database proprietor server corresponding to a highest priority in the priority listing of the cookie, the first beacon request indicative of access to media at the client device; and cause a second beacon request to be sent to a second database proprietor server, the second database proprietor server corresponding to a lower priority than the highest priority in the priority listing of the cookie, the second beacon request indicative of the access to the media at the client device.

Abstract: An example apparatus includes: at least one memory; instructions in the apparatus; and processor circuitry to execute the instructions to: access a cookie at a client device, the cookie including a priority listing indicative of an order in which beacon requests are to be sent to ones of a plurality of database proprietors; cause a first beacon request to be sent to a first database proprietor server, the first database proprietor server corresponding to a highest priority in the priority listing of the cookie, the first beacon request indicative of access to media at the client device; and cause a second beacon request to be sent to a second database proprietor server, the second database proprietor server corresponding to a lower priority than the highest priority in the priority listing of the cookie, the second beacon request indicative of the access to the media at the client device.

Abstract: A disclosed example to monitor access to media includes; a communication interface to send a uniform resource locator (URL) scrape instruction to a client computer in response to a first request from the client computer, the first request indicative of access to the media at the client computer; a processor in circuit with the communication interface; and memory including machine readable instructions that, when executed by the processor, cause the processor to: provide the URL scrape instruction to the communication interface when a URL of a host website of the media is not obtainable by the processor from the first request, the URL scrape instruction to cause the client computer to: (1) read the URL of the host website from an address bar of a web browser at the client computer, and (2) send the URL of the host website to a server; and store a logged impression of the media in association with the URL of the host website from the client computer.

Abstract: A disclosed example to monitor access to media includes; a communication interface to send a uniform resource locator (URL) scrape instruction to a client computer in response to a first request from the client computer, the first request indicative of access to the media at the client computer; a processor in circuit with the communication interface; and memory including machine readable instructions that, when executed by the processor, cause the processor to: provide the URL scrape instruction to the communication interface when a URL of a host website of the media is not obtainable by the processor from the first request, the URL scrape instruction to cause the client computer to: (1) read the URL of the host website from an address bar of a web browser at the client computer, and (2) send the URL of the host website to a server; and store a logged impression of the media in association with the URL of the host website from the client computer.

Abstract: Methods and apparatus are disclosed to monitor impressions of social media messages. An example method includes receiving at a server a request for media, the request addressed to a uniform resource locator, the request corresponding to a social media message to be presented with the media, and the request including a user identifier. The method also includes crediting the social media message with an impression based on the request being addressed to the uniform resource locator. The method also includes identifying that the impression corresponds to an original intended recipient of the social media message based on the user identifier matching a second user identifier stored in a list of subscribers that subscribe to receive messages from an original sender of the social media message.

Abstract: Methods and apparatus are disclosed to monitor impressions of social media messages. An example method includes logging, at a server, a first impression for a first social media message based on a first universal resource locator corresponding to a first request requesting media, the first request sent in response to accessing the first social media message to be presented with the media. The method also includes logging, at the server, a second impression for a second social media message based on a second universal resource locator corresponding to a second request requesting the media, the second request sent in response to accessing the second social media message to be presented with the media.

Abstract: Methods and apparatus to play and control playing of media content in a web page are disclosed. In one example, a method of monitoring media content in a web page loads a web page containing a media player and media content, processes an image of the web page to determine a control associated with the media player, and monitors the media content based on the control.

Abstract: Methods and apparatus to validate a tag for media are disclosed. An example method includes obtaining first identification information extracted from a tag distributed with media presented at a presentation location, obtaining second identification information determined from at least one of a) inherent information of at least one of audio or video of the media presented at the presentation location or b) a watermark embedded in at least one of the audio or the video of the media presented at the presentation, comparing the first identification information with the second identification information, and when first identification information does not substantially match the second identification information, preventing the tag from being used to report exposure of the media.

Abstract: Methods and apparatus to play and control playing of media content in a web page are disclosed. In one example, a method of monitoring media content in a web page loads a web page containing a media player and media content, processes an image of the web page to determine a control associated with the media player, and monitors the media content based on the control.

Abstract: Methods and apparatus to validate a tag for media are disclosed. An example method includes obtaining first identification information extracted from a tag distributed with media presented at a presentation location, obtaining second identification information determined from at least one of a) inherent information of at least one of audio or video of the media presented at the presentation location or b) a watermark embedded in at least one of the audio or the video of the media presented at the presentation, comparing the first identification information with the second identification information, and when first identification information does not substantially match the second identification information, preventing the tag from being used to report exposure of the media.

Abstract: Example methods and apparatus to generate identifying tags for media content as described herein. An example method includes obtaining an identifier value associated with at least one of audio or video of received media content by at least one of: extracting the identifier value from at least one of the audio or the video or determining the identifier value based on inherent information of at least one of the audio or the video, generating a tag including the identifier value, and storing the tag with the media content to cause the tag to be distributed to a presentation location along with the media content.

Abstract: Methods and apparatus are disclosed to monitor impressions of social media messages. An example method includes logging, at a server, a first impression for a first social media message based on a first universal resource locator corresponding to a first request requesting media, the first request sent in response to accessing the first social media message to be presented with the media. The method also includes logging, at the server, a second impression for a second social media message based on a second universal resource locator corresponding to a second request requesting the media, the second request sent in response to accessing the second social media message to be presented with the media.

Abstract: Methods and apparatus are disclosed to monitor impressions of social media messages. An example method includes receiving at a server a first request for first media, the first request addressed to a first uniform resource locator (URL), and the first request corresponding to a first social media message to be presented with the first media. The method also includes receiving at the server a second request for the first media, the second request addressed to a second URL different from the first URL, and the second request corresponding to a second social media message to be presented with the first media. The method also includes crediting the first social media message with a first impression based on the first request being addressed to the first URL, and crediting the second social media message with a second impression based on the second request being addressed to the second URL.

Abstract: Methods and apparatus are disclosed to monitor impressions of social media messages. An example method includes receiving at a server a request for media, the request addressed to a uniform resource locator, the request corresponding to a social media message to be presented with the media, and the request including a user identifier. The method also includes crediting the social media message with an impression based on the request being addressed to the uniform resource locator. The method also includes identifying that the impression corresponds to an original intended recipient of the social media message based on the user identifier matching a second user identifier stored in a list of subscribers that subscribe to receive messages from an original sender of the social media message.

Abstract: Methods and apparatus are disclosed to monitor impressions of social media messages. An example method includes receiving at a server a first request for first media, the first request addressed to a first uniform resource locator (URL), and the first request corresponding to a first social media message to be presented with the first media. The method also includes receiving at the server a second request for the first media, the second request addressed to a second URL different from the first URL, and the second request corresponding to a second social media message to be presented with the first media. The method also includes crediting the first social media message with a first impression based on the first request being addressed to the first URL, and crediting the second social media message with a second impression based on the second request being addressed to the second URL.

Abstract: Example methods and apparatus to generate identifying tags for media content as described herein. An example method includes obtaining an identifier value associated with at least one of audio or video of received media content by at least one of: extracting the identifier value from at least one of the audio or the video or determining the identifier value based on inherent information of at least one of the audio or the video, generating a tag including the identifier value, and storing the tag with the media content to cause the tag to be distributed to a presentation location along with the media content.

Abstract: Methods and apparatus to monitor media content at a content display site are described.

Abstract: Methods and apparatus to automatically crawl the Internet using image analysis are disclosed. An example method to visually identify components of a web page includes rendering a web page in a web browser to generate an image, and visually analyzing at least a portion of the image with a machine to detect a region containing a possible web page component. The example method further includes automatically determining a type of the detected web page component and storing the web page component type and a location of the portion of the web page.

Abstract: Methods and apparatus to play and control playing of media content in a web page are disclosed. In one example, a method of monitoring media content in a web page loads a web page containing a media player and media content, processes an image of the web page to determine a control associated with the media player, and monitors the media content based on the control.