Ow can the principles of direct marketing help companies deliver their objectives?

references to at least 2 organisations in the B2C market and at least 2 in the B2B.

providing a literature review critical analysis and commentary on academic theory (defining Direct markleting,principles of marketing..)

appreciate the importance od direct marketing in strategic, tactical and operational level.
(accountability, measurability..)

explain the importance od database marketing and internet marketing in developing a coherent direct marketing strategy.