Recently google started a new web font service with a list of nice fonts. There are a lots of opensource fonts on google own server which all you can use on your website. It’s pretty simple to use and works on most web browsers. Here you can see how to use those fonts for your website.
To see the list of font visit on http://code.google.com/webfonts
There are all resources with list of fonts, how to use, web fonts api documentations etc
Basic use of google font api (2 steps) –
Step1: On html page head add a stylesheet link to request the desired web font(s)
Step2: Set font family with the requested web font, either in a stylesheet or inline style on the element itself
More use of google font api –
If you want to use multiple web font you need to request multiple font families, separate the names with a pipe character (|) on stylesheet link url.