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.
MacType - MacType render windows font smoothly and much more convenient to read.
Fonts.com - Fonts.com provides the biggest and best selection of high quality desktop and web fonts. Try, buy and download classics like Helvetica, Univers, Frutiger, Trade Gothic and Avenir along with popular new fonts like Soho and Neo. Find your type!
gdipp - The gdipp project is a replacement of the Windows text render, which brings to you the effect of...
Google Fonts - Making the web more beautiful, fast, and open through great typography
fontconfig - Fontconfig is a library for configuring and customizing font access. Fontconfig can: