They should post new products that are added. Maybe they are having discounts (really good idea to post that) They should post seasonal messages. Who gets to see the news?: - People at tripleclicks that connect with them and also if they write in the stream. A2a friends get to see it. Ecas can also post promotions, giveaway, freebies... Thank you for reading!:-) hope I could help you with your question.
