I am annoyed by seeing default favicons everywhere on high profile sites!! You've got this great looking site on this super fast webserver, but you have Joomla's default favicon!
:: Default ie BAD Favicons ::

:: Good Examples ::
Google "Favicon" Its that little picture that displays next to the title of the site while the site is loaded in your "tabbed browser" or while the site is in your bookmarks folder. It also appears in the address / URL box at least IE 7 & Firefox.
If you have a website, please please please, put up your own favicon!
Its easy, here is a free favicon creation tool. Basically create any square [height = width] image and upload it to create your own favicon. After your favicon is created. Upload to the root folder of your website. Some sites may require the favicon.ico file in every folder.