The LuthorCorp website is presented just as it's seen on the show. It covers everything from the "Board of Directors" to "Career Oppertunities." If you attemp to read the "Annual Reports," then you'll need the three Passwords; smallville / plantno.3 / manager . If you attempt to enter the "Intranet" section to get into the companies mainframe, you'll need the Username and Password: Lex / SpaceShip (however, you'll be detected and thrown out right away). If you want to see what's in the LuthorCorp Mainframe then you'll have to use the backdoor link that I have provided below.
LuthorCorp
LuthorCorp INTRANET "Backdoor Address"