Although it sounds a little unconventional for many people, online juror jobs do exist. Many companies, and even individual persons, often hire juries to conduct mock trials before the real trial starts.
The lawyers and the law firms then go through all the real procedures of a court. They conduct arguments, make evidence presentations, and even witness conversations in front of the mock jury.
And in turn, they expect honest opinions from the jurors. Companies and lawyers do that mainly to find out the loopholes and weaknesses of their cases and proceedings.