It looks like the sups on my personal blog are all Jun 30, July 24, and 25. Going back to what I said earlier, I don't think sups matter all that much. One of my sup pages on my personal blog got 3 or more really good backlinks and it is now sup. That page should in no way be sup.
It is my understanding that landing in the sups is not generally the result of lack of backlinks, at least not that reason alone....
Landing in the sups generally comes from
>Duplication - Content and/or Meta, and Canonical issues. Content uniqueness scored onder 60%. Duplicate Meta, especially titles.
>Spam penalty on the Domain.
>Lack of Domain Trust and Credibility
>Lack of quality, relevant backlinks
>Distance from root URL.
http:// www. domain. com/stuff/stuff2/stuff3/stuff4/too_long_url.html
This is dependent on the number of clicks to get there....So if you are practicing good strong internal linking, then this shouldn't be a problem.
Blogs are famous for sup pages, because of label and search pages getting indexed. Again though, this is clearly duplication. While the sup index is famed as not being a "penalty".... It is still less valued results, that are rarely returned in SERPs. Less resources used by Google to crawl and maintain it, and frankly less overall concern for fixing the problem on Google's part. You cannot do a reinclusion, as Google claims no penalty assesed. So gaining good backlinks, and fixing what is suspected to have caused the placement in the sup, is the plan....then you wait absolutley forever to be properly crawled and re indexed.
I am going to test a new theory I read about. This weekend I am going to block a large percentage of my sup pages in robots.txt, for a month or so. Theory is this....the will hopefully be de indexed, and then when I remove the block....reindexed on their merit as the result of a regular crawl...like new content. This is hopefully going to prevent me from having to rewrite a TON of URLs, instead.
So as always...experiments and learning on the fly!
Melanie