Find Potential Survey Participants on the Internet

We are a company that conducts online surveys and we need someone familiar with Linkedin and Google to contact Linkedin group members for surveys. When you are a member of a Linkedin group you can send an email to a member of this group asking a question and we would like a virtual worker to send these emails to a list of members of a Linkedin group asking them if they would like to take a survey and providing an online link to them so that they can be directed to a survey site to take the survey. In addition to Linkedin we also sometimes use Google searches to find particular types of professionals and then ask them (generally through an email) to take a survey. The person who takes this job should know how to find certain kinds of professionals -- say heads of research labs, or professors of mathematics, or corporate marketing directors -- and email them with our proposal for a survey in their area of expertise. Place your bid for 7 hours of work time devoted to this task.