Mark Portnoy, president of Portnoy, Messinger, Pearl & Associates, Inc., was quoted  on how seminars can be an effective growth tool for service businesses in the 9/13 – 9/19, 2013 edition of Long Island Business News. Click here for the full article – Seminars a growth tool for service firms #PMP #Tools #LongIslandBusinessNews #Workshops #LIBN #HR #HumanResources