Dafont - Archive of freely downloadable fonts. Browse by alphabetical listing, by style, by author or by popularity.
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.
Fonts4Free - Archive of freely downloadable fonts for Windows and Mac OS.
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.
Google Fonts - Making the web more beautiful, fast, and open through great typography
Dfonts.org - Download free fonts, google fonts, free fonts, adobe fonts, cool fonts, calligraphy fonts, instagram fonts, script fonts, handwriting fonts.