iconmonstr
«[…] The icon(s) can be used freely in both personal and commercial projects with no attribution required, but always appreciated. […]»
InfoBits Icons & Dingbats
InfoBits, font by Fonthead Design. InfoBits can be purchased as a desktop and a web font.
Pictos Font
Heydings - A Free Icon Web Font
Web Symbols typeface
Modern Pictograms
Designed to work in any context at any size, even on retina displays
iconSweets Deluxe