Serving advertisements based on content

摘要

Advertisers are permitted to put targeted ads on page on the web (or some other document of any media type). The present invention may do so by (i) obtaining content that includes available spots for ads, (ii) determining ads relevant to content, and/or (iii) combining content with ads determined to be relevant to the content.

主权项

1. A method comprising:
obtaining, by one or more processing devices, a first set of document information extracted from a shallow crawl of a first set of untargeted Websites, the first set of untargeted Web sites comprising at least one document for which document information is unavailable, wherein, for the at least one document, the first set of document information comprises an estimate of document information for the at least one document, the estimate being based on a classification of the at least one document among the first set of untargeted Websites; obtaining, by one or more processing devices, a second set of document information extracted from a deep crawl of a second set of targeted Websites, the second set of targeted Websites being different from the first set of untargeted Websites, the targeted Websites comprising Websites provided by content providers having available spots for receiving content, and the targeted Websites comprising content about which information has not been previously obtained or stored; and serving, by one or more processing devices, content using at least one of the first set of document information or the second set of document information.