PigFontViewer - For the first time, there is a font viewer and font manager that is available for all leading operating systems like Windows, Linux, and Mac OS X operating systems.
AMP Font Viewer - Jump to Download - Download.
Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
Font Manager - Simple font management for GTK+ desktop environments
Fonts Ninja - Try fonts discovered on websites in any design software
What Font Is - Find any font from any image (commercial or free)