Abstract: A computer-implemented method of selecting content items from a collection of content items in a content system. The method includes determining at least one characteristic of a user from a corresponding user profile and determining at least one previously selected content item selected from the collection of content items by the user from a user history. A first set of tags is generated comprising at least one tag associated with the at least one characteristic and at least one previously selected content item. The first set of tags is used as input to query an index of the collection of content items with which are associated a second set of tags that are semantically similar to the first set of tags. The result of the query is a list of content items for the user associated with the corresponding user profile.

Abstract: A computer-implemented method of selecting content items from a collection of content items in a content system. The method includes determining at least one characteristic of a user from a corresponding user profile and determining at least one previously selected content item selected from the collection of content items by the user from a user history. A first set of tags is generated comprising at least one tag associated with the at least one characteristic and at least one previously selected content item. The first set of tags is used as input to query an index of the collection of content items with which are associated a second set of tags that are semantically similar to the first set of tags. The result of the query is a list of content items for the user associated with the corresponding user profile.

Abstract: The disclosure recites a system and method for managing relationships among records in a database of services provided by health professionals and users. The method comprises: creating and maintaining a first set of records in the database for a user, the first set of records including fields for a name, contact information and a goal; creating and maintaining a second set of records in the database for health professional records in the second set including fields for a name, programs and activities; analyzing the database to identify a set of health professional records in the second set of records that match the goal in the first set; generating and sending a set of programs offered by the set of health professionals to an account associated with the user; and track progression of a selected program in a network, such as a social network.