I don't need to tell you about the suffering that continues in Haiti because of the earthquake. If you specifically want to help in the name of a non-religious organization, the Richard Dawkins Foundation has combined their efforts with several other freethought organizations to raise some money for disaster relief. Details are available at a website they've set up, Non-Believers Giving Aid. The donations will benefit Doctors Without Borders and the International Red Cross (despite its name, the Red Cross is actually a secular organization).
Over at Beliefnet, Rod Dreher takes issue with the tone on the website, but he does at least appreciate the efforts. I cannot tell you how glad I am to see these efforts out there. I hope they're able to raise a lot of money this way. For my part, I had already donated via the text message thing before hearing of this, but if this becomes a standing thing, I'll try to remember and promote it for future efforts. For anyone who has yet to donate, what are you waiting for?