Ok apparently there were quite a few questions being sent to me and skohh from people wanting to know what I did to keep the ranks that I gained from using his service.
Let me start by saying that I have no idea if those links were necessary or if I would have kept the rankings no matter what.
So, for a while I was still adding content to the site. I haven't for the last little while and the rankings have more or less held steady.
As for links, I used high quality stuff. Generally they were contextual links in blog posts on high quality sites. It's not really anything special, and these are earned links, but not necessarily niche specific ones.