Abstract: A first user terminal receives an incoming communication via a communication system originating from a second user of a second user terminal, the second user net yet being a contact of the first user. In dependence on one or more factors relating to the incoming communication, an automatic selection is performed between: a) prompting the first user with a quarantine experience in a user interface on the first terminal upon the receipt of the incoming communication, the quarantine experience offering the first user an option to block further attempts by the second user to communicate with the first user via said communication system, or instead b) prompting the first user with little or no quarantine experience upon the receipt of said incoming communication.

Abstract: Evaluating an electronic document in connection with a search. An external source provides data for use in evaluating an electronic document retrieved by a search engine. A first confidence level of the electronic document is determined based on the externally provided data. The first confidence level indicates a likelihood that the electronic document is undesirable. A second confidence level of the electronic document is determined based on attributes of the electronic document. The second confidence level indicates a likelihood that the electronic document is unsatisfactory with respect to a search. A rating for the electronic document generated as a function of the determined first confidence level and the determined second confidence level is used to categorize the electronic document as unsatisfactory in connection with a received search request.