During the nearly two-month Casey Anthony trial, lead trial consultant Amy Singer would leave the courtroom at the end of each day and head for her computer. There, she and her team would monitor about 40,000 blog items to find out what was annoying people about Anthony — and tailor their defense accordingly.

Singer, who runs the Fort Lauderdale-based Singer Cos., said the trial was the first high-profile murder trial to take place in the social media age and will forever change how lawyers defend clients.