I have a client that owns a business that really could be easily divided into two separate business in terms of SEO.  Right now his web site covers both divisions of his business. He gets about 5500 visitors a month.  The majority go to one part of his business and around 600 each month go to the other. So about 11% I'm considering breaking off this 11% and putting it on an entirely different domain name.  I think I could rank better for this 11%.  The site would only be SEO'd for this particular division of the company.  The keywords would not be in competition with each other. I would of course link the two web sites and watch that I don't run into any duplicate content issues. I worry about placing the redirects from the pages that I remove to the new pages.  I know Google is not a fan of redirects.  Then I also worry about the eventual drop in traffic to the main site now.  How big of a factor is traffic in rankings? Other challenges include that the business services 4 major metropolitan areas. Would you do this?  Have you done this?  How did it work? Any suggestions?