Page.ly released a plugin, available on the plugin repository, that will add a banner to the top of your website with a donation link to the American Red Cross. 100% of donations will go to helping in disaster relief.
WPCharity has released a Twenty Ten child theme to help. The theme is called Japan Tsunami, and is available for $1 or more. Twenty five percent of the minimum $1 price is donated to relief. For every dollar over a dollar you pay, 95% will be donated. The money WPCharity raises will be donated to the Japanese Red Cross Society.
The Japanese people are in the midst of a very trying time. Tens of thousands of people are either dead or missing, and the threat to nuclear power facilities is daunting to say the least. Kudos to both companies for giving back, and perhaps each of us can help in a small way using our favorite web publishing platform.