Tékumel Website and ForumsThe official Tekumel website is a gorgeous creation, one of the best game-related sites I've ever seen. It is a fount of information about the world and games of Tekumel. I has adventures, rules, encyclopedic articles, art, and more.
It also has the Tekumel Forums, a place to discuss all things Tekumelani. The folks ther are friendly and helpful. Check it out, read some posts, and respond.
Tékumel-related Yahoo! Groups
Tékumel Facebook groupThe Tekumel Facebook group is gets a fair amount of traffic. If you use FB a lot, check it out.
Tékumel Google+ CommunityThe Tékumel Google+ Community is brand new and quite active. I really like how it's taken off and brought new people into the Bethorm of Tekumel.
So, there's no excuse if you are feeling alone and isolated in your love of Tekumel. There are many places to hang out with new friends.