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.
Updated March 18, 2016. The definition of circulation as it applies to business is the proliferation of several things, including business brand, products, services and business reputation. The actual act of business circulation is usually performed by a highly trained sales and marketing group within the business.