You all know Google Adwords.But you don't have all the money to pay for it.What would you say if I told you that there is a similar website where you can advertise for free?The name is www.adgridwork.com.This website is the same as Google Adwords but you don't have to pay.Actually it's more like a link exchange site but also a little different.All you have to do is sign up ,write your ad (as you would do it at Adwords) and than copy and paste a javascript on your site.
You will get more then 2000 backlinks to your site.Since I signed up there my traffic has grown 200%!