I saw an interesting Twitter post the other day talking about Google’s font directory. Fonts have always been a problem on the web as not everyone has the same fonts installed and it has made consistency on a website a difficult task. It appears, however, that Google is attempting to solve this problem by offering up an API for their currently small collection of fonts.
Something else I have also noticed is they are using CSS3 to reference the styling of their fonts. You can learn more at their quick start guide and if I implement this in a site I will be sure to come back with an update and a link.