In reply to Dan Knauss.

I don't think it's a case of trying to trap people on onto any particular site, more a case convenience. I for one always open links by right clicking the link and selecting, Open link in new Tab (Firefox). My reason! I tend to forget which site I came from, especially if the link is unrelated to the research I'm doing, plus, I tend to have ten plus sites open at once. Also, I hate having to backtrack using the, Go back one page button, especially when I've browsed through many pages. This is a real drag.