Yes even than. "Japanese electronics maker Panasonic has suspended some of its operations in China after anti-Japan protesters attacked two of its factories."

http://www.bbc.co.uk/news/business-19620114

What is so important about these islands that caused these protests in the first place?

Nobody teach Chinese to be specifically anti-Japanese, they just... anti-Japanese, and this's only logical from many standpoints, historically, politically etc. BTW Taiwanese are very well anti-Japanese as well at least in social consciousness, though not politically (and you cannot accuse Taibei of favouring Beijing, lol).

Or if you mean that Chinese school program regarding hisotry biased and would like to present their own view on things (though honestly, given the facts of Japanese occupation of China it's not like these accusations are not well founded), but that could be said about anyone else, including the US. This's just how mass education functions.

They think there could be oil on these islands.

Or weapons of math instructions!

MATH?! omg, they must be crazy!

Nothing! Diaoyu Islands are as much important as Falkland Islands, the best importance of which I could  think of is they're probably inhabited by penguins.

And here again people are discussing anything but what actually matters here. It's nothing like it very complicated.

There're certain ROC interests in the South China Sea which they see as fair simply because they are major force in the region. There's anti-Chinese bloc on the other side, surronding it including Vietnam, Taiwan, Philippines and Japan. It goes without saying whose bitches these countries are, the US bitches :D (well, outside Vietnam maybe, but it strongly graviated to anti-Chinese bloc recently). All these protests about god forsaken Diaoyou Islands for thousands time are merely acts of the play "Who's the toughests kid on the block?".

With that being said, I always laugh when yet another weapons industry lobbyist in Congress or MSM is braging about Chinese threat (hence recent Billy Hertz article in The Washington Times about DF-41, bla-bla-blah Obama is disarming America, making us vulnerable to China, sold his soul to communists and other BS). Yeah, threat :D They're barely able to compete with US bitches bullying them not far from their coastline. Poor Chinese.

Thanks for your insights. The last part is quite interesting as no matter what happens anywhere in the world. The US mainstream media starts to talk about immenent threats and expanding the defense budget. Which is bigger than next 10 nations combined. I am sure there is good that comes from it but people with big money and stake (defense contracts) who benefit from conflict forget the presence of their own mortality. No prince or wizard has been able to take the billions with them after they died or atleast it seems thus so far. 

just like that anti-mohammed video these islands have nothing to do with the protests

Japan has been the military, politcal and economic bully of the region for centuries and now slowly but surely China wants to claim all of those titles, that's really what's happening.

Mai has it correct. This is political staging in the South China sea. America has been upping their military presence in the area and staging practice invasions. China and Russia are both worried about America's ambitions and they have every right to be. If America invades Iran they will be right next to Russia and be able to surround China. No country is really pursuing imperialistic ambitions anymore except America. China in Africa is not political hegemony imo.