Check out Using Webfonts by by. Here is an excerpt:
A note from the editors: We’re pleased to share an excerpt from Chapter 2 (“Using Webfonts”) of Bram Stein’s new book, Webfont Handbook, available now from A Book Apart.
Now that you’ve selected a font, let’s put it on your website. Webfonts are defined in CSS through the
@font-face
rule….
The full article is available here.