Updated employee handbooks are so important.  So often they are updated very infrequently and worse yet left to sit on a shelf. Handbooks are the most important management tool available and the policies, practices highlighted must be adhered to by all supervisors and leaders.  I know that most people are not qualified nor do they desire to write one for themselves. There is a significant amount of time and specific expertise required to effectively and appropriately write a handbook. Too often the person given the task to update and write handbooks is truly not qualified to do so. Being the most important management tool for compliance and effective management of employees.  JBM has done this for you...
Compliant, best practices handbook...easy to edit and customize

Employee conduct (and social media) toward co workers and supervisors - employees  DO have the " right to criticize or protest their employer's labor policies or treatment of employees"; you CANNOT have policies that prohibit protected criticism.  Wording related to "respect" has to be carefully reviewed.