12. A system for relevance scoring of a digital resource keyword based on user actions associated with a plurality of digital resources, the system comprising: a server receiving identification of a first plurality of actions and a second plurality actions of a user, each of the first plurality of actions comprising a click by the user on a link associated with a digital resource of a plurality of digital resources, each of the second plurality of actions of the user comprising an action to share one or more digital resources of the plurality of digital resources; a content extractor identifying a plurality of keywords from content of one or more digital resources of the plurality of digital resources; a classifier classifying patterns from the first plurality of actions, the second plurality of actions and the plurality of keywords; and a relevance score generator generating, responsive to the classifier, a relevance score responsive to receiving a user identifier of the user and a digital resource keyword, the relevance score indicating a level of relevance between the digital resource keyword and the user, the relevance score based on the first plurality of actions, the second plurality of actions and the plurality of digital resources.
12. A system for relevance scoring of a digital resource keyword based on user actions associated with a plurality of digital resources, the system comprising: a server receiving identification of a first plurality of actions and a second plurality actions of a user, each of the first plurality of actions comprising a click by the user on a link associated with a digital resource of a plurality of digital resources, each of the second plurality of actions of the user comprising an action to share one or more digital resources of the plurality of digital resources; a content extractor identifying a plurality of keywords from content of one or more digital resources of the plurality of digital resources; a classifier classifying patterns from the first plurality of actions, the second plurality of actions and the plurality of keywords; and a relevance score generator generating, responsive to the classifier, a relevance score responsive to receiving a user identifier of the user and a digital resource keyword, the relevance score indicating a level of relevance between the digital resource keyword and the user, the relevance score based on the first plurality of actions, the second plurality of actions and the plurality of digital resources. 16. The system of claim 12 , wherein the second plurality of actions of the user comprises sharing at least a portion of content from the digital resource in a social networking site.