"OpenType for your desktop and webfonts for your sites"
comparação entre serviços que disponibilizam fontes para utilizar online (@font-face)
"Wordmark.it detects fonts installed on your system with a small Flash script written by Marko Dugonjić of Type Tester. It also uses Remy Sharp's font detection scipt. "
Icon Fonts (or pictograms) are available for a very long time but the ones that are specifically designed for web apps are appearing lately.
They are so flexible and fun to use considering each icon can be resized, colored, rotated and styled very easily. No need to hack them in our image editing apps but just CSS is enough.
And, making buttons, menus, lists, etc. with icons becomes painless as we deal with a single element: "the text" rather than "the text and the images/icons".