Where are they located? I've checked every book I have access to and I can't seem to find them. Can someone help me please? While I'm asking questions, what are the rules on level adjusments? How do they effect exp and such? Joral and I can't find that either and it's become a constant arguement between us.
The only place I've ever seen the half-elemental template is in the back of Return to the Temple of Elemental Evil.
It's in the Manual of the Planes.
Don't forget to pick up the 3.5 errata for the Manual of the Planes if you get it (the errata is located here).
I found them in Dragon 326