Attorneys preparing for trial often create a mock jury to get feedback from individuals similar to those who may eventually sit on a jury. Since it can be costly to do in this in person in the community where the trial, cheaper online jurors are the logical alternative. They might listen to audio and view video presentations, or read the material and answer questions.
These little jobs are done by people who log on to a company’s site and choose tasks, which could be as simple as clicking a link. Amazon's Mechanical Turk is one of the most well-known sites of this type. Also, there are crowdsourcing projects, which are similar to data entry, where companies engage an army of virtual workers to each do one small part of a larger project.