Er maby im wrong, but just go and log in, click on your name and it take you to your 'WALL"
then just copy the url and post it on your site, but be warned anyone will be able to see your personal facebook now so make sure you have set up your pricey options how you want and if it is a work website then maby make a new facebook acount for just that and dont use your personal one.
good luck.