This is an SEO related question. I have several wordpress blogs and I utilize a highly recommended SEO plug-in. It gives you these choices: Use noindex for Categories: Check this for excluding category pages from being crawled. Useful for avoiding duplicate content. Use noindex for Archives: Check this for excluding archive pages from being crawled. Useful for avoiding duplicate content. Use noindex for Tag Archives: Check this for excluding tag pages from being crawled. Useful for avoiding duplicate content. What do you recommend for these choices? I had someone recently tell me to: Use Noindex for META Keywords Use Noindex for categories Allow index of Archives Do you agree? I have just noticed most of my categories have no PR even when the home page has PR5. Is this a concern?