Typeface Tools
Font Converters and Editors
Fontforge An opensource program for editing and converting fonts. It is available for Microsoft Windows, MacOS X, and Linux.
Transfonter will convert Opentype fonts to Webfont formats. If you enable the “Family Support” option, it will set up the font family properly.
Online Font Catelogs
Identifont Online catelog of fonts cross referenced by name, appearance, publisher, etc.