Accessory shelf mounting mechanism

The invention provides a mounting mechanism useful for swivelly attaching a secondary work surface, such as a computer mouse platform or other accessory work shelf, to a primary work surface, such as a computer keyboard platform or a table or desk. The mounting mechanism facilitates swivel movement of the accessory work shelf relative to the primary work surface while maintaining a constant, but easily adjustable, tension. The invention further encompasses furniture, such as computer support furniture, having an accessory work shelf swivelly attached to a primary work surface and methods of such attachment.