Microsoft Typography: Includes fonts, FAQs, and reference documents, with a focus on TrueType.
Microsoft Typography: Research and development of fonts and font technologies, TrueType and OpenType. Also manages the TrueType rasterizer built into Windows 95/98 and Windows NT.
Microsoft's TrueType Fundamentals: An excellent basic description of the process of digitizing a font and rendering the digitized font for output.
The FreeType project: A free, quality, and portable TrueType engine
TrueType Typography: site for independent information about TrueType font technology - many links
YellowJug: View and download YellowJug true type font. Chat room is also available.