There have been songs posted, and a movement to produce a #helpjapan twitter tag (http://www.helpjapan.jp) and nicotag (http://www.nicovideo.jp/tag/%23prayforjapan) for #prayjapan, both to raise awareness of the best way to get aid to people and to raise people's spirits in the wake of the damage. The movement is massive and has been followed closely by people in Japan as a source of comfort; donating is still the best way to send raw help to the region, but no-one is turning down good feeling either.

That said, right now I'm personally of the opinion that nico needs every drop of bandwidth it can for live broadcasts of news and the dissemination of information, so I've been trying not to hammer it. singing_robots took the week off both out of respect and the desire to honour that.