If you have a personal website, it doesn't need to be in your signature. In fact, if you have your personal website link in your signature, it is actually excessive. Observe beneath Knightshade Dragon's post, there is a 'www' button. Press it, and it brings you to whatever web page that he has set as his webpage in his user profile for the forums.
I just changed mine, and I see that my journal does come up in the WWW button.
So change your profile, put your website in there.