Amnesty International is holding an international day of action for him on May 19th ( link to www.amnestyusa.org), but don't wait until then. Act now.
Here is more information about his case:
link to www.amnestyusa.org.
There are so many causes in the world, but we have the strength and the energy to act up for almost all of them. Put Troy Davis on your list. He could use the help.