If you don't want to check all the individual artists' blogs for their current auctions, you can go over to the Daily Paintworks. They are having a large auction of art with the proceeds going to the Japanese Red Cross for disaster relief. Take a look and see if you find something you want that can also benefit the people of Japan. And kudos to all the artists who have joined this challenge! Auctions start this afternoon.
I've read that donations coming in for Japan are much less than the donations sent for the Haiti relief efforts the first weeks. Let's help out the Japanese people, if we can. There are many individual stories there of total loss and I cannot imagine the stress they are living under every single day since this earthquake and tsunami happened.