Tulunk Village

I was in the middle of editing all the types for Denjuu in Telefang 1 on Wikifang, and when looking at RacieB's Denjuu list, it said that Easy Dog is Land type. However, I could have sworn it was Sand type (at least in Telefang 2, anyway). Did they change it in TF2, or is this an error, or is my memory foggy?

They DID change it in T2. Your memory is not foggy nor is it an error. Originally Denjuu did not change types upon reform evolution - something that was changed in T2. So yes, originally Easy Dog was Land.

Were there any others that were changed?

Yes, all of the recurring Denjuu have changed types upon reform evolution now, for example Demonos is still Hill-type and can evolve into Demobaron by level, who is also still Hill-type. However he can also reform evolve into either Demojairas (now Sky) or Demozatan (Land? or Sand.. now I forget x_x Land probably.) Same goes for Fangs, Andios, Suguri, and of course Bibamu.