best link for electronic student

1.for basis of elctronic and how electronic device work click

http://www.ectinschools.org/page.php?ps=2&p=33

2.for various tool softwares and component etc click

http://www.educypedia.be/electronics/rfdigmod.htm .

3.for elctronic circuit diagram etc click

http://freecircuitdiagram.com/ 

for microcontroller how they programm and code ,write me on comment ,which controllor and which corresponding software you use for programm it then i will send u full link and any help. specially I help you atmega16 programm for both eclipse and CV AVR software.