You can check out the Free RPG Day site for a list of participating stores. Lots of cool stuff is up for grabs including the ‘We Be Goblins‘ adventure for Pathfinder, A Dragon Age quickstart from Green Ronin, and much, much more.
If you are in the Athens, GA / North Georgia area you can drop by and see me at Tyche’s Games in Athens, GA.
Also, if you do take advantage of Free RPG Day, I encourage you to join the Geek Life Project and Take the $5 Pledge.