we have a website for last 5 months and we did not used slug at bottom level elements so urls was like /apps/webmasters/badges/1100 would it make sense to add name to the URL after that point and redirect to the new ones ? I am interested in building more search terms. and increase page ranks ..... /apps/webmasters/badges/1100 - redirect and served at /apps/webmasters/badges/1100-supporter Or should I keep old URLs as is and create new urls with slugs. I would also appreciate some advice on shared urls on facebook or on twitter in those cases. Thanks in advance...