Dafont - Archive of freely downloadable fonts. Browse by alphabetical listing, by style, by author or by popularity.
Fonts4Free - Archive of freely downloadable fonts for Windows and Mac OS.
Font Squirrel - Font Squirrel scours the internet in search of FREE, highest-quality, designer-friendly, commercial-use fonts and presents them for easy downloading. We don't have the most, but we do have the best.
Google Fonts - Making the web more beautiful, fast, and open through great typography
Typekit - This will change the way you design websites. Add a line of code to your pages and choose from hundreds of web fonts. Simple, bulletproof, standards compliant.
Befonts - You can download the best fonts, free fonts for personal or commercial use.