http://google.com/trends?q=spongebob%2C+avatar&ctab=0
Quoth Duffman from Simpsons:
Oh yeah!
It seems more people searched for Avatar when it aired between Fall & Winter in 2007. It proves just how popular it is, at least on the internet, that Nick is failing to capitalize on it. I bet if we offered Nick to buy the whole Avatar franchise for $10 million, they would sell it. It's like how you buy undervalued shares and then you get a tree that grows money.
The promotion of Spongeboob in Japan = fail.