This the second volume of six from the Annual Conference of the Society for Experimental Mechanics, 2010, brings together 40 chapters on Microelectromechanical Systems and Nanotechnology. It presents early findings from experimental and computational investigations on MEMS and Nanotechnology including contributions on Nanomechanical Standards, Magneto-mechanical MEMS Sensors, Piezoelectric MEMS for Energy Harvesting, and Linear and Nonlinear Mass Sensing.