Font Squirrel is a fantastic tool for sourcing custom fonts to use in your website or personal designs. It searches the internet looking for free or paid fonts, and then presents them to you in their font directory.
Not only does Font Squirrel let you download the fonts for desktop use, it also offers a Webfont Generator that packages your chosen fonts ready for use on your website! You can even upload a font from your computer and it will generate a kit ready for you to use on your website.
It's easy to insert custom fonts into your website, especially with the aid of tools like Font Squirrel.