Possible Duplicate:Favicon, icon, shortcut icon, apple-touch-icon: Are there any others? This is a two part question:The first is about favicons in general. Are there any good practices to follow when it comes to these icons? Currently my site had <link rel=shortcut icon href=http://mysite.com/favicon.ico /> in the <head> of my site pages and I have the file favicon.ico in my root folder to cover the basics. Are there other practies that are not as well known yet good when creating/using  a favicon? IS 16x16 still the best size?Th second part of this question is about other favicons on the site. The main one I mention is the Apple's favicon for my site. I can put this code: <link rel=apple-touch-icon href=somepath/image.png /> onto my site and when a person using an iOS operating system adds my site to their homescreen it views my icon vs a thumbnail of my site. Do other devices/operating systems have anything similar?  (Android, Windows Mobile, Symbian, Blackberry, etc.)Are there other things I should know?  Note: This Question comes close to answering this but it is over a year old and much has changed in that time at least in relation to phones/tablets. 
Favicon Best Practices
favicon;android;ios
16x16 is still best practice, this isn't something that is likely to change soon.To answer your second question;Mobile devices that try and include an image for a bookmark or website generally use the favicon.  I can't speak for them all but certainly the ones you mentioned there don't have any special icon type or setting.