Does Any One Know?

I need some help please. I've been trying for hours now to figure out how to add a URL link with code included to my email signatures.

I've tried the < a way

&

I've tried the [URL= way

And they aren't working.

I know that code has to be continual with no spaces in between, and they don't but I'm still not getting them to work right for me.

I've seached to find a tutorial, but haven't found it yet.

I feel like I'm wasting precious time while fiddling with this.

Does anyone know how to add a signature code into

*Yahoo

*Hotmail

*Gmail

Obviously, I need the CliffNotes for Dummies on how to create links in your email signature.

If you do, or know of a link, please, pretty please, let me in on this mysterious online secret.

Thanks & Blessings!