I understand that you can create a favicon.ico with multiple resolutions embedded.Which resolutions should your average website support?  Why?Edit: Performance should be a consideration. I want to keep the favicon around 1K to stay inline with these recommendations: http://developer.yahoo.com/performance/rules.html
Which resolutions should I make a favicon in?
performance;favicon
Favicons in the browser are 16x16 pixels. For multiple resolution favicons, the sizes 24x24, 32x32, and 48x48 pixels are the most common to include in addition.