Why arent people using SVG for this sort of thing? Isnt that HTML5's vector graphics format? I supose if you're using icons w/ the express purpose of using them with in-line text, then this would be Ideal... but just seems like a weird hack, when there is SVG available... The author of this website claims to simply be ignorant of SVG at the bottom? whats up with that? Why is using a font "hack" better than using the…
Key point: SVG icons don't actually scale that well because SVG lacks hinting.