Books, lecture notes and other study material available  online :

      ebooks from freecomputerbooks

      short tutorials from asic-world

      8051/8052 microcontrollers

Interview questions from various IT and semiconductor companies:

     jobs, interview questions - freshersworld

Professional networking, Technical forums

     professional networking through linkedin

     EDA and semiconductor forum edaboard

Training resources on Moodle learning management System

    various training materials and video on how to prepare course page