Last Wednesday Google launched a set of new web-fonts, fonts which can be used anywhere on any website freely. The Google Font API allows you to use all these fonts in your own blog.Check out this new font as an example:
New Fonts For Blogger
So, how to use these fonts on your blog?
For every new font you want to add to your blog, you simply have to paste a single line of code in your blog's template. Once you are done with it, remember the name of the font and use it anywhere in your blog (in any post or part of a post or in your widgets).
Steps to add a new font:

Yesterday Google