Font Manager - Simple font management for GTK+ desktop environments
MacType - MacType render windows font smoothly and much more convenient to read.
CufonFonts - The world's most comprehensive Webfonts supported free font archive. For designers and developers.
gdipp - The gdipp project is a replacement of the Windows text render, which brings to you the effect of...
NexusFont - Choose and manage your fonts with Nexus Font.
fontconfig - Fontconfig is a library for configuring and customizing font access. Fontconfig can: