Gifford's Official Tekumel Site
Must read, everything Tekumeli is here, including archives of the magazines
Unfortunately not all sites are still extant, nor are all kept up to date.
Brett Slocum's Tekumel Pages
Bags of stuff, the best place for GURPS Tekumel.
Joining the main group is a must for Tekumel fans.
For the Love Of Golden Sapphire
Online campaign set in Mrelu
Visitations of Glory
An intermittent APA Fanzine
Anthony Farrell's Tekumel Site
Includes material on Kilalammu
Tsolyani Word for the Day
Learn the lingo!
The ODD Board
Primarily Original D&D, but with a section devoted to the original EPT as well
Greentongue's OEPT pages
A summary of the OEPT rules including the Guile stat and Adventurer variant
Clanless Barbarians of Pupol-Sua
Edsan's OEPT campaign blog
Tekumel books are available at:
Tita's House of Games
Drive Thru RPG