Socratic Technologies is a company focused on computer-based and internet research methods. It carries out global web-based surveys, builds online panels and performs website usability evaluations.
They use their relationships with various publications, networks and organizations to recruit people interested in the topic that they are researching and send invitations or place advertisements online to join the panels. In order to become a panelist and participate in their surveys you have to receive an invitation that will also provide you with a user name and a password that allows you to join the panel. 
