* Login/SignIn/Signup Links - Do you have a nofollow on this? Why not? There is no vital information on these pages. It's just a user function. * Register - Same as above * Logo/Header Picture - Unless you get customers by images (tangible products), what would be the point of not putting a nofollow? * RSS feeds - Can create duplicate content. You want the search engines to index your blog posts, not your feeds. * Tags, Archives, Category pages - They all contain your blog post. That's at least 3 extra pages with duplicate content, AND your juice leaks. * Contact Us - Does this contain vital info that needs to be indexed? Normally, it's a form that needs to be filled out. * Copyright/TOS/Privacy/Feedback - These pages do not contain relevant information to your website, and should not be indexed. * Comment - Juice should stay in your blog post, and not going to comment pages.