I'll be leaving this up here for the rest of the week. Scroll down for the new posts.
The Red Cross has a page devoted to the earthquake. You can donate right there.
Doctors Without Borders hasn't updated its site to focus specifically on the quake, but they're on the scene, having worked in Indonesia for almost a decade now. Here's their Indonesia page.
Anybody who has links to other ways to help, please leave them in the comments.
Do what you can.