Amanye Tenceli
Dedicated to the Tengwar and Sarati writing systems, includes overviews and downloads for fonts and transcription utilities.
Dan Smith's Fantasy Fonts for Windows
Tengwar, Cirth, and Runic fonts.
Proposal to Encode Tengwar in Plane 1 of ISO/IEC 1
Michael Everson's proposal to add Tengwar to the ConScript Unicode Registry.
Tengwar Numerals
Discusses symbology and usage.
Tolkien Languages Transliterator
An applet that will allow displaying a transliterated version of texts entered.
Yamada Web Guide to Tolkien Languages
Fonts, mailing lists, and links.
YaTT: Yet Another Tengwar Tool
Software tool for two-way transcription of Tengwar in various language modes; also includes a discussion forum.