I run a very popular niche site that averages 2k unique visitors per day. In my niche I average about 4th place in SERPS. One of my important keywords I hold 2nd place for but no 1st places! As far as SEO goes I am fully optimized with Whitehat On Page SEO. The problem is I never really concentrated on backlinks. I let my backlinks grow naturally as me and my team regularly publish high quality unique content. I believe the main thing I lack is backlinks. On page SEO is much better than the competition. However, the competition definitely has more backlinks. I rather not do a xrummer blast as my site has a reputation to uphold and I do not want spammy forum post linkbacks. So I was considering paid directory submissions. In the Buy/Sell area of this site somebody offer 2.2k manual submissions. Do you think this would help on a site like mine?