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Hi Jac! Are you concerned about the category pages themselves being indexed? If not, you can block crawlers from accessing them with robots.txt. You might even try adding "noindex, follow" to them, to ensure crawlers move through their links without indexing the "duplicate" content.

Hi Jac, If you keep the content on your homepage quite similar to the existing homepage, you should normally be able to keep the rankings for the keywords that are currently generating traffic to your homepage. If everything goes well, Google should be able to figure out that for some keywords, other landing pages on your site are a better choice than just the home (although it's never a guarantee - just browse the q&a section and you'll find plenty of questions wondering why Google seems to prefer the home page rather than the skilfully crafted landing pages on the site) rgds, Dirk