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You are definitely on the right track. I would continue to work on quality/quantity of the content/freshness depending upon the niche. At the same time, do an audit of your link profile and compare it to a couple of the competing URLs who are outranking you and see what you notice as the brand links vs anchor text links and so on. Also, make sure you are not doing too many links of any one kind.

That is very useful...good to know...thanks Keri.