I run a website selling "widgets" (let's call this SITE A) and recently aquired another business that sells widgets. (let's call this SITE B). Site A has lots of hits/traffic and site B has less traffic but is well ranked. I am currently redesigning the look for both sites and wondered if I should make 1 site "merging" both site's products/services (which would probably be site A) or if I should keep both sites in tact and looking the same and let the traffic flow as it's been in the past. Regardless I would make sure that all the pages that are ranked in search engines are properly redirected to site A.