Below are a few links that I find really handy while dealing with clients and employees, and for other activities.

  1. http://chrislema.com/similar-looking-websites-cost-different-amounts/
  2. https://poststatus.com/wordpress-website-cost/
  3. http://www.inc.com/james-archer/how-the-friend-or-foe-response-helps-you-understand-your-customers.html