...use of the term “relational” as a problem, and used it because it accurately reflected his application of set theory, known as the theory of relations in British English and the more pretentious US textbooks, to data management. ...
http://blogs.zdnet.com/Murphy/?p=1247
...Twist on The Long Tail A New Twist on The Long Tail In 2004 Chris Anderson popularized an Internet merchandising theoryknown as The Long Tail. He concluded that the potentially gigantic inventory of Internet merchants would considerably...
http://www.insight24.com/webcasts/content-128803_1