How important is the frequency of updates on a blog? – (Fresh Content)
“Some people are under the impression that blogs are good for SEO only if they’re updated frequently. How much does frequency play into PageRank for blogs & other dynamic sites? Isn’t the content more important than the simple # of posts per day/week?”
From an SEO point of view it is the quality of the content that matters far more than the frequency of updates but for readers new content encourages them to revisit. If the quality is good it will encourage natural links.