I don't think there is any need to explain what fiverr.com is. So, let's get to the point. Fiverr is offering every SEO out there a huge army of freelancers, ready to work for 5 bucks. 5 dollars is the cost for link building services too. I know what you are thinking. These link builders are scammers, they are going to just take my money and dig my website rep. No, that's not the case here. The idea behind the low price is that when someone finds these services acceptable and reliable, they give you a thumbs up and your add will rank higher. For examples, check some link building adds on fiverr. You will see how successful some of them are. They are offering completely satisfactory services to their customers. So, what I am trying to say here is that we should make good use of these cheap offers. Maybe even create a list of trusted link building experts on fiverr. My 2 cents!