Crowd sourcing arose in response to the need to collect and manage large amounts of data.5 It is being used in diverse areas in science, including astronomy, biology, ecology, pharmacology, genetics, and disease treatments.3-8 In astronomy,for example,large numbers of volunteers are used to examine data from telescopes and images of interstellar dust particles.2 Enthusiasts believe that crowd sourcing enables researchers to step out side their silos by adding diversity and new perspectives.4