SEO questions before launching new web site...

Question

Hi, I'm launching this big database (1.5+ million records) driven website and I want to know some SEO tips before..

1. Which links I need to tag as rel="nofollow", rel="me", etc?
2. How to prevent search engines to follow links that are meant to users only? Like 'login', 'post message', 'search', etc.
3. Do I need to prevent search engines from entering the 'search' section of the site? How to prevent it?
4. The site is basically a database of movies and actors. How to create a good sitemap?
5. I need to prevent search engines form reading user comments and reviews???
6. Another robots.txt or .htacces configuration is needed?
7. How to use noindex the right way?
8. Additional tips?

Thanks!

Answer 1

1. If you just have internal links, no reason to make them nofollow
2. Make them buttons on forms with method="post" (that's the correct way to do it anyway)
3. Don't think you need to do that.
4. Perhaps see how IMDb does it? I'd consider just listing all actors and all movies in some sort of a sensible manner or something like that.
5. Why would you need to do that?
6. Depending on whether you want to block something (via robots.txt) or need .htaccess for something else
7. No idea
8. Remember to use semantic HTML - use h1's for page titles and so on.