As everyone knows, it has long been possible to add a very fancy signature to your mail.app emails, using the excellent tutorial provided by Melvin Rivera.
It’s complicated, involving some digging around under the hood. It also requires a measure of HTML and CSS coding ability.
However, when the process is over the result is impressive (provided that you don’t hold a faith position on plain text in Internet communication):

Now a poster on macOSXHints has discovered an easier way. It is possible to add hyperlinks to your signatures in Mail’s Preferences without the pain involved in the first option.
All you need to do is type text into the signature field, highlight it and press Command-K (⌘-K). Up pops a dialog into which you place the URL, and you’re done. In a minute you have a hyperlinked signature, not as polished as Melvin’s, but easier on the eye than a sig full of long URLs:

Rob Griffiths comments that the tip didn’t work for him in 10.5, but it’s working fine for me in 10.6.1 (mail.app 4.1).
Of course, Command-K (⌘-K) also works in the body of any (rich text) email you are composing.
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