Thank you for your valuable input guys. This is really helping me to clarify some concepts. I would like to refer to the real life case that this discussion is about
Our strategy is to use our layered navigation filters to create numerous landing pages. As you can imagine, a combination of these filters can create many many pages. We are using the following tactics to make them search engine friendly:
1. Using nofollow, noindex tags in the header, if more than one option is selected for the same filter, to control crawl depth
2. Using nofollow, noindex tags in the header, if more than two different filters are selected, to control crawl depth.
3. Adding unique content to these pages
4. Creating a unique meta title/description for each page
5. Using rel next prev for pagination, to consolidate link equity and preferably index the first page in the series
As you can imagine, even with the condition of nofollow, noindex pages with more than two filter combinations, we get many many pages. After reading your comments, I am wondering whether this strategy will work for us, especially since we are a new site with 25 DA. Do you think this strategy will work for us? Do you suggest an alternative?