Here is a relatively complete list of ways you can help the victims (human and animal) of the April 27 tornadoes. The Birmingham News has compiled and is reguarly updating this list. How to help tornado victims with donations and other aids
Some of these sites are on the list above, but if you are a one-click type of person, I'll list them again. The Governor's Relief Fund, Birmingham Mommy Tornado Relief List, The American Red Cross, The Salvation Army and the Greater Birmingham Humane Society.