The strongest earthquake in over 200 years struck Haiti. Hospitals were seriously damaged and thousands of injured people wait for care outside.
On Google's Support Disaster Relief site, you can easily donate money to UNICEF or CARE. Some charities on the following site accept payments by cash, also some organizations accept SMS donations.
Now you can help via the Richard Dawkins Foundation for Reason and Science:
Also you can make a donation via Skeptics and Humanist Aid and Relief Effort.