I need advice please! I am working on the SEO of a new social network. We are aiming to have 100k plus links by the end of the year which will hopefully get into the millions next year. With this in mind I am investigating how to create a sitemap that can incldue all links. I read somewhere that I may need to have categories in the sitemap so as not to haev too many link on 1 page. Also I have a directory at the bottom of each page with a link to each profile on the site so Im wondering is it even necessary to create a sitemap? Thanks for your help