Stock ownership can be a powerful motivational tool at private companies -- but only if you educate employees. At the privately held ad agency Colle & McVoy, the orientation for new employees includes a session with the chief financial officer and the chairman. The two explain balance sheet basics to the new hires -- and make it clear how the company's performance affects the price of stock in the company's employee stock ownership plan. Last year Minneapolis-based Colle & McVoy had billings of $122 million and was named Employee Stock Ownership Plan Company of the Year.