To all of you blaming jurors and Floridians, if you've ever met one, you'd realize they would burn her to the stake if they could. If you could see every status update from my fellow Floridians, you would know this. The jurors did their job in this case. Lots of circumstantial evidence that could not prove within a reasonable doubt that she was the murderer. It could've been someone else, a family member perhaps. The difference between Casey Anthony and OJ Simpson's trials is that DNA evidence directly linked OJ to the crime scene, yet there is nothing of the sort linking Casey to the body of Caylee. No damning DNA evidence, anyway.
Did she have something to do with her daughter's death? Probably. Can the prosecutors prove it? Apparently not. Innocent until/unless proven guilty is the name of the game.