Abstract: A method and system for determining and notifying users of undesirable network content are disclosed. According to one embodiment, a method may include detecting an adverse content event corresponding to a given network information source, where the adverse content event occurs dependent upon activity of a given user with respect to the given network information source. The method may also include reporting the adverse content event with respect to the given network information source, detecting a reference to the given network information source on behalf of a particular user, and in response to detecting the reference, retrieving an indication corresponding to the given network information source, where the indication is determined dependent upon adverse content events reported with respect to the given network information source. The method may further include notifying the particular user of possible undesirable content with respect to the given network information source dependent upon the indication.

Abstract: A method and system for determining interest levels of online content navigation paths. A method may include determining each of a plurality of navigation paths among a plurality of online content sources, and for each of the navigation paths, determining a corresponding path weight, where a given corresponding path weight is indicative of user activity along a corresponding navigation path. The method may further include identifying a particular aggregate path within the online content sources, where the particular path includes some of the navigation paths, where an aggregate path weight corresponding to the particular path is dependent upon the path weights corresponding to the navigation paths included in the particular path, and where the aggregate path weight satisfies an optimization criterion relative to other aggregate paths. A given navigation path included in the particular aggregate path may correspond to a possible user traversal from a first to a second online content source.

Abstract: A method and system for displaying interest space user communities. A method may include detecting a request to access a given online content source, where the request is generated on behalf of a given user, where the given online content source is one of a number of online content sources included within an interest space, and where the interest space is identified dependent upon indications of user navigation activity among the online content sources. The method may further include displaying to the given user a representation of the interest space in response to detecting the request, where the representation includes respective indications of at least a subset of the content sources included within the interest space, and for a given content source within the subset, displaying to the given user respective indications of users on whose behalf a respective previously-generated request to access the given content source has been detected.

Abstract: A method and system for scaling navigation path weights among online content sources. A method may include determining a first probability of users traversing a first navigation path from a first to a second online content source, dependent upon a ratio of traversals of the first navigation path and traversals of all navigation paths to the second online content source. The method may also include determining a second probability of users traversing navigation paths from the first online content source to any of the online content sources, dependent upon a ratio of the plurality of online content sources to which navigation paths from the first online content source exist and a total number of the plurality of online content sources. The method may further include generating from the probabilities a scaling factor indicative of a strength of the first navigation path relative to other navigation paths among the online content sources.