I was playing around with market samurai in the weight loss niche and found a niche with a surprising amount of green for such a largely searched topic. None of these sites are above PR5 (average PR2), none of them has over 100 backlinks except for the 9th which has almost 2000, and almost none of them are site optimized for the keyword (none of them have education or governemnt backlinks, title, description, header, yahoo direct, dmoz, etc.) This almost seems too good to be true. The only catch is that that have very high domain ages (there are five 12yr old sites, yelp is in 5th place with 14 yrs old. I'm a newbie, I have no idea how to build backlinks, I even downloaded senuke, and all the sites I blasted still have no backlinks after a month. So I'm scared, but do you guys think that I found a good niche? Or am I being dazzled by the low backlinks, and ignoring the fact that they all have insane domain age?