www.craftsbycourtney.com/how-to-make-add-multi-resolution-la...

Have you heard about multi resolution favicons, but need help making it? No prob. I'll teach you how-to make AND add a multi-layered favicon to your site!

www.creativebloq.com/illustrator/create-perfect-favicon-1211...

Jon Hicks presents a guide to creating the perfect favicon size image from scratch using Adobe Illustrator.