20. A system for enabling a user to provide criterion-specific feedback for an item, comprising: a processor; and a memory device including instructions that, when executed by the processor, cause the processor to: provide for display a representation of the item and information regarding the item; and provide a user with the ability to provide feedback for the item, including: enable the user to select an existing response to an existing question or statement regarding at least one existing criterion for the item; enable the user to specify a new response to an existing question or statement regarding the at least one existing criterion for the item; enabling the user to select an add feedback element when the at least one existing criterion does not substantially represent the feedback the user wishes to provide for the item; in response to receiving a selection of the add feedback element, enabling the user to input a new criterion that represents the feedback the user wishes to provide for the item and one or more new values for the new criterion, by enabling the user to input a new question corresponding the new criterion and one or more new responses to the new question, the one or more new responses corresponding to the one or more new values; and aggregate feedback provided by the user with existing feedback for the item, the aggregated feedback able to be subsequently provided for display with the representation of the item and information regarding the item.
20. A system for enabling a user to provide criterion-specific feedback for an item, comprising: a processor; and a memory device including instructions that, when executed by the processor, cause the processor to: provide for display a representation of the item and information regarding the item; and provide a user with the ability to provide feedback for the item, including: enable the user to select an existing response to an existing question or statement regarding at least one existing criterion for the item; enable the user to specify a new response to an existing question or statement regarding the at least one existing criterion for the item; enabling the user to select an add feedback element when the at least one existing criterion does not substantially represent the feedback the user wishes to provide for the item; in response to receiving a selection of the add feedback element, enabling the user to input a new criterion that represents the feedback the user wishes to provide for the item and one or more new values for the new criterion, by enabling the user to input a new question corresponding the new criterion and one or more new responses to the new question, the one or more new responses corresponding to the one or more new values; and aggregate feedback provided by the user with existing feedback for the item, the aggregated feedback able to be subsequently provided for display with the representation of the item and information regarding the item. 21. A system according to claim 20 , wherein the memory device further includes instructions that, when executed by the processor, cause the processor to: when feedback received from the user includes a new question, provide the ability for the user to specify an affirmative feedback statement corresponding to the new question to be displayed with the representation of the item.