Citizen Science has a very long history, despite essentially being marginalised for nearly 150 years when research became a profession [Miller-Rushing, A., Primack, R., and Bonney, R. 2012. The history of public participation in ecological research. Frontiers in Ecology and Evolution 10(6):285-290]. However, there is some right in discussing contemporary citizen science as a new phenomenon, as its coming back has been heavily influenced by the web, and by our advanced understanding of statistics and system dynamics. In facts, most of the citizen science projects that have hit the headlines in the past decade all share something: they have assumed the character of massive crowdsourcing of problems, leveraging either contributed computing, or volunteered wisdom, by mean of the internet. There is more than meets the eye to this new wave of citizens participation in science, and value is generated and openly contributed in wa