I agree with Spinal007 and I too strongly believe that Link Building helps increase your rankings.
But picking up random links from non relevant pages wont help you in any way.

You should go for links from highly relevant article pages. In doing so, not only your rankings would improve, but you get the targetted audience that you are looking for. I got link building done for my website from www.Bestlinksdeals.com. They focus on highly relevant article pages. Also, I let them handle my banner campaign. Links and banners from these highly relevent article pages really helped my site in the long run.