Technical q's

I know these questions may be embarrassingly obvious, but hey, I'm a simpleton 
How do you make your sig a link to your registry?
How do you make a word or phrase into a link, without the ugly old URL being there?
and finally,
How much wood would a woodchuck chuck if a woodchuck could chuck wood?

How do you make your sig a link to your registry?
How do you make a word or phrase into a link, without the ugly old URL being there?
and finally,
How much wood would a woodchuck chuck if a woodchuck could chuck wood?