How do I put a link on my signature?

[Rhaegar I]

I want to put a link to my new ATL on it, but I have no idea how to do it.

[Rhaegar I]

Please, don't respond all at once.

Can someone at least show me a guide to different stuff like this?

[fortyseven]

Copy the url, click Insert Link, when you see it, delete the highlighted part and put what you want.

[Electric Monk]

This is a placeholder link (http://www.alternatehistory.com).

This is a placeholder link with an extra space before the equal sign so you can see the construction