Some Interesting Simulations

MOS Fabrication process
http://micro.magnet.fsu.edu/electromag/java/transistor/

How a MOSFET Operates
(Dependence of Inversion Channel on the Gate-Source Voltage and on the Gate-Drain Voltage)
http://jas2.eng.buffalo.edu/applets/education/mos/mosfet/v11/mos_1.html
Output Characteristics: Id vs. Vds, Saturated Drain Current: Ids vs. Vgs)
http://jas2.eng.buffalo.edu/applets/education/mos/mosfet/v11/mos_2.html

Simulation of MOS Memory Operation
http://jas2.eng.buffalo.edu/applets/education/system/memory/index.html

Operation of CMOS Gates
http://tech-www.informatik.uni-hamburg.de/applets/cmos/cmosdemo.html