Posted by: thebeanproject on: June 19, 2009
A favicon (short for favorites icon), also known as a website icon, shortcut icon, url icon, or bookmark icon is a 16×16 pixel square icon associated with a particular website or webpage. Browsers that provide favicon support typically display a page’s favicon in the browser’s Address bar and next to the page’s name in a list of bookmarks. Browsers that support a tabbed document interface typically show a page’s favicon next to the page’s title on the tab. — Favicon Wiki
<link REL=“SHORTCUT ICON” HREF=“http://yoursitedotcom.here/favicon.ico”>
You could also create a PNG or GIF for your FAVICON, but it will not work on Internet Explorer. I would recommend using a .ICO file.