MacType - MacType render windows font smoothly and much more convenient to read.

Google Fonts - Making the web more beautiful, fast, and open through great typography

gdipp - The gdipp project is a replacement of the Windows text render, which brings to you the effect of...

Brick - Brick is an open-source webfont service that serves fonts in their original form for high quality rendering across all browsers.

fontconfig - Fontconfig is a library for configuring and customizing font access. Fontconfig can:

Linotype - Linotype: Fonts for Desktop, Web & More