A method and apparatus for employing user input to classify unknown websites whereby when a given unknown/unclassified website is accessed on a given computer system associated with a given user, the given user is asked to provide input regarding the legitimacy of the given unknown/unclassified website. The classification of the given unknown/unclassified website is then determined via one or more sources other than the given user's input. The accuracy of the given user's input regarding the legitimacy of the given unknown/unclassified website is then determined and used to calculate, and/or transform, a reliability score that is then associated with the given user. A given user's reliability score is then used to determine the given user's eligibility to provide further input regarding the legitimacy of other unknown/unclassified websites, and/or to determine a value to be place on, or otherwise filter, future input from the given user regarding the legitimacy of other unknown/unclassified websites.