Business Etiquette: New Day, New Time 
Business etiquette including communication, ethics, and teamwork has changed considerably over the years. Core values of companies are evolving. Companies now want to be the "place to work". Issues that were once taboo in the business world are no longer. This can be observed in an employee's appearance for example. The once standard business suit has been replaced with casual dress. The normal peer to peer communication has been replaced with upward and downward communication throughout the business organization.
Ashe, Carolyn and Chynette Nealy. Association for Business Communication (2008). Articles>Business Communication>Collaboration