Didymo is a member of the group of single-celled aquatic plants (freshwater algae) known as diatoms. Although it is microscopic, didymo can form dense colonies called algal blooms which can be seen with the naked eye.
From a marketing perspective, publicity is one component of promotion which is one component of marketing. The other elements of the promotional mix are advertising, sales promotion, direct marketing and personal selling. Examples of promotional tactics include: 1  Announce an appointment.
Selling a product service one to one. Direct Mail. Is the sending of publicity material to a named person within an organisation. Direct mail allows an organisation to use their resources more effectively by allowing them to send publicity material to a named person within their target segment.