Font Manager - Simple font management for GTK+ desktop environments
NexusFont - Choose and manage your fonts with Nexus Font.
Connect Fonts Powered By Suitcase - A flexible font manager that uplevels the classic desktop application with intuitive search, pairing suggestions, and remote access in the cloud to keep you inspired, no matter where you are.
Maintype - MainType is a professional font manager that allows you to view, manage, install and print your...
RightFont - The future of font manager software for Mac OS X
fontcloud - Your Free Online Font Manager. Focus on Working with Your Fonts. Instead of Managing them.