Other good H2 or H2 related forums

[jsbihn]

Hey all,
I am looking to join some other forums that would be good in regards to our H2.

I am not sure which are the best and I dont want to blindly go joining 50 million forums either.
Basically I am looking for H2 specific (like this one), but I am also looking for others that are related to the H2 that can help me with repair or parts or whatever (ie. like I think someone said the Chevy Tahoe guts is similar to our rigs?)

Thanks