Building Links to your website is a fact of life, if you more organic traffic, higher pagerank, higher search engine ranking you will HAVE to build links but where? Where do you get the high quality links? Sure you can try posting here and there but sadly most blogs and forums will delete you for spam or a NoFollow. Most directories even though their main page is high PR the inner page where your links go are usually PR0. Or you can pay someone and have no control where and how long your links will be there.