Using Type: Getting #font-face Right, Preventing Faux Bold « FontShop Blog
First, thanks Art Blanc for requesting that I add this brief bit as an extension to Using Styles Properly. Designing with professional webfonts, you’ve generally got two options. Host your own, or go with someone like Typekit or Webtype that handles the hosting and serving of font files as needed. I’ll focus on the first case, but this is still pretty applicable to the second, as it will point out why problems like faux bold and faux italic occur, and how to fix them.