Listen these videos. Very useful for all individual especially for Gult.
http://www.youtube.com/watch?v=J7MaYgFrh0E&list=PLCBF670EFDB682D8C&index=8&feature=plpp_video
This blog discusses about the CMOS VLSI circuits, their design and applications. This blog will also discuss basic rc circuits, pulse and digital circuits and analog/digital communication basics.