Forgive me if it has been answered already or posted wrong forum. If I have a website which already somehow established with one keyword and I want to rank another related keyword – what is the best approach - build another website with more appropriate domain name or build on existing site using sub domain/pages? Here an example – I have a website about USA maps (usamaps.com) and it ranks well with search engine with keyword USA map. Now I want to target a new keyword - New York Maps. Should I expand existing site (usamaps.com) or use another appropriate domain (newyorkmap.com) to build new site targeting keyword New York map. In SEO perspective, which is better approach?
add to your existing site making it bigger. newyork.usmaps.com or usamaps.com/newyork Then build links to the new pages using New York as the link text.