NYT: The [xenophobic] protests also signaled the emergence here of a new type of ultranationalist group. The groups are openly anti-foreign in their message, and unafraid to win attention by holding unruly street demonstrations.

Since first appearing last year, their protests have been directed at not only Japan’s half million ethnic Koreans, but also Chinese and other Asian workers, Christian churchgoers and even Westerners in Halloween costumes. In the latter case, a few dozen angrily shouting demonstrators followed around revelers waving placards that said, “This is not a white country.”

Local news media have dubbed these groups the Net far right, because they are loosely organized via the Internet, and gather together only for demonstrations. At other times, they are a virtual community that maintains its own Web sites to announce the times and places of protests, swap information and post video recordings of their demonstrations.

While these groups remain a small if noisy fringe element here, they have won growing attention as an alarming side effect of Japan’s long economic and political decline. Most of their members appear to be young men, many of whom hold the low-paying part-time or contract jobs that have proliferated in Japan in recent years.

Though some here compare these groups to neo-Nazis, sociologists say that they are different because they lack an aggressive ideology of racial supremacy, and have so far been careful to draw the line at violence. There have been no reports of injuries, or violence beyond pushing and shouting. Rather, the Net right’s main purpose seems to be venting frustration, both about Japan’s diminished stature and in their own personal economic difficulties…