The following links offer information related to fonts, digital typography, TrueType and everything else in between:
TrueType Explorer Product Support
Apple Computer invented TrueType.
Microsoft Typography has a well organized collection of links to other font sites, especially sites that offer free fonts.
The comp.fonts FAQ. They are looking for volunteers to update this comprehensive, but aging document.
Unicode Inc. is responsible for defining the Unicode Standard. This site provides authoritative information and resources for programmers, implementers and others involved in computer globalization work.
Freetype develops a TrueType rasterizer which is used by TTE.
An independent source for information on TrueType.