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.
There are several definitions of publicity, but the most appropriate one is the one that is from a marketing angle. Publicity in its simplest form is the means of conveying information to the general public through the media. The information being publicized could be news, awareness about a product and service, etc.