Joined: 01 Jun 09
03 Jun 10 5:52 am
Yes, domain age does play a significant role in getting SERPs and PageRank, but so does content. It's rather like liquor, getting better with age, but you must have good quality "ingredients" to begin with.
We would want to have all bases covered for better ranking all around and so while your domain is aging nicely, you also want your content to be of high quality and to be really relevant to your niche, and you would also want to continue building backlinks from relevant, good quality websites.