SitePoint » 88 Outstanding Favicons and 6 Resources to Help You Create Your Own
http://www.sitepoint.com/blogs/2009/02/27/88-outstanding-favicons-and-6-resources-to-help-you-create-your-own/

beware - immediately wants you to do a survey

Favicons have become a standard element in web design, and they can have a tremendous impact on brand recognition (see Matt Magain’s post, “Google Changes Favicon, Challenges You To Do Better“). If you’re not used to designing for a tiny area (just 16×16 pixels), it can be very difficult to create a distinguishable company-specific or site-branded favicon. And depending on the logo, colors, words, etc. that you’re working with, it can be a challenge to create one that actually looks good.

50 Fantastic Favicons: Episode 9 - Smashing Magazine - http://www.smashingmagazine.com/2010/03/14/50-fantastic-favicons-episode-9/

すてきなFavicon いろいろ。