The Icon Handbook has a whole chapter devoted to creating Favicons, and the various options you can provide for different contexts, but with the subsequent release of Microsoft’s new OS, Windows 8, there’s another big one for the list! In Windows 7, websites could be ‘pinned’ to the taskbar (which used a 32px resource in the favicon.ico file) but now they can also be pinned to to the start screen, having a special Windows 8 ‘tile’ of their own.
