I am working for someone at the moment who had their site hijacked and thousands of pages created that look like: www.theirdomain.com/somespamword Some of these are ranking on the first page of google. There are about 12,000 of them. We are going to rebuild the site and fix it, that's fine. But from the Google SEO point of view, what would you reccomend the best way of deindexing the links are? 1) My first plan is to submit a new sitemap once the site is rebuilt. Might this be enough in itself? If so how long would you expect it would take before they fall out of the google listings? Is there anyway to speed it up? 2) What else can we do apart from submitting a new sitemap to let google know we want nothing to do with the links, and we want them cleared out of the google database?