Need HELP for SNMP

Hai Everybody,

        I am working on SNMP , i would like to know how to start the coding
for SNMP , is there any web site from where i can get an introductory
material (Code) , or any books which deal with coding ? . I have read many
books but most or in fact all of them deal with the theoretical part alone.

        I would like to a develop the code do discover all the SNMP Agents
present on the Network , how do i go abt it?.

Eagerly waiting for the reply

S.Sriram