I will be providing information and especially references to web sources for the benefit of the seminar participants. To get started, please read up on what's called "flexitarianism". Newsweek has an article entitled "Part-time vegetarians" which describes us, at least for the purposes of our seminar.
http://www.newsweek.com/id/161559
Another article on the same subject is found at http://www.greenallianceohio.org/pdf/9%2029%20flexitarian.pdf