[ybot]

The article mentions Google Font API and Typekit as sources of fonts online, but there's another option that's worth looking at: The Open Font Library (http://openfontlibrary.org/)

The fonts hosted there are free (both as in beer and as in freedom). It's interesting to see how they apply the concepts around free software to another medium, like fonts.

[stevelosh]

Another site with open source fonts is The League of Moveable Type: http://www.theleagueofmoveabletype.com/

They only have a handful, but they're pretty much all high-quality.

[kadavy]

Thanks - these are beautiful!

[fredpeters]

The best place for free fonts I have found is (http://www.fontsquirrel.com/).

They also package them up as @font-face with all the variations needed. I would be warned though, font rendering varies so greatly, that unless you test extensively, most will not be good enough for anything but headings.

[jm3]

FontSquirrel and The League both have some great faces that display very well in modern browsers.

The Open Font Library guys appear to be struggling, however: http://skitch.com/jm3net/dt3cr/broken-font-library [screenshot of the fonts not working in Chrome]