The Google Font Directory lets you browse all the fonts available via the Google Font API. All fonts in the directory are available for use on your website under an open source license and are served by Google servers.
In our last article about CSS3, ["Pushing Your Buttons With Practical CSS3](https://www.smashingmagazine.com/2009/12/02/pushing-your-buttons-with-practical-css3/), we talked about using new CSS3 techniques like gradients, border-radius and drop-shadows to create compelling, flexible and (in some cases) hilarious buttons.