favicons are great. they allow you to put a personal touch to your links on address bars, shortcuts, and favorites links. in order to have a favicon you have to have a 16 by 16 or 32 by 32 image saved in .ico format. if you have photoshop, it can save in .ico format. if not you can browse around and some sites have premade favicons you are free to use on your site. all you do is upload your .ico and link it withing the following code.
<link rel="shortcut icon" href="http://yoursite.com/favicon.ico">
now just place the code at the top of any page you'd like the favicon to appear on!
anymore questions you can contact me here