[Jac]

I agree that humping is not sexual, but dominance...however, I have noticed that my females hump (each other and my male) as they are near or in their heat cycle, so I believe that it can be hormonal. Your puppy has been neutered so I don't believe this is hormonal. His behavior in other ways makes me think that he is trying to become the top dog in your household.
I am not a fan of the metod mentioned above, however...that doesn't mean it is wrong, many people use this method...but when my dogs hump each other, I simply redirect their attention to something else and they stop.
I agree, however, that you may need stronger methods since your puppy is humping you and not another dog...so I ran a quick search for humping ... and here are the articles:
http://www.veterinarypartner.com/Content.plx
I have not yet read them, but this is a good site for information so I think that the articles will be helpful.
This is a very tough problem...I hope that you are able to gain control over it.

 

[Jac]

Yes, I think that you are handling it correctly...you can almost always distract them from the activity and when you don't make a big deal out of it, neither do they.
If you get all excited and over react, they may learn that it is a good way to get attention...
Our girls hump each other too...sometimes we have a conga line in our house...but since we are breeders, we don't want them to feel like that is a bad thing to do...we just rediret their attention. It really isn't a problem. (It happens more when heat cycles are going on.)

 

[Jac]

Oh, believe me...you WILL! I cry every time a puppy leaves me...even though I know that they are going to great and loving homes...I know that they are leaving ME!! I have 3 going this weekend and I am very depressed...I know that they will be happy, but I still will miss them.
It is a tough business, really it is! (A great one too...having and loving puppies is the best!)