Let's suppose you have a classified ads website for widgets. The site have tens of categories: green widgets, blue widgets, etc. These pages contains hundreds of classified ads related to green widgets, blue widgets. Of course, you can only list 10-20 classified ad links on every category page so pagination is required. The question is: what to do with paginated pages? Noindex them? Nofollow them? Both?
I want each specific classified ad to be crawled and indexed + the main category pages (without pagination). What is the optimal way to do this? So far, all my paginated pages are indexed by google but they all have different titles and meta tags (green widgets - from 11 to 20). Is this OK, or I should better keep one page (the non paginated one) in the google index?