Link building is a way which is very popular technique to get more website traffic. If you want to get more traffic, Google Page Rank and Alexa Ranking you have to maintain Link Building methodology. Actually link building is very common terminology who have possessed a website by own. Sometimes they also use money to build huge links on others website. But it is not so tough to build links. There buy blog posts are huge platforms where anyone can submit their website URL or link. But it will be not wise decision to submit link anywhere. Because Google Panda and Google Penguin is here! If you get thousand back-link in a day they will catch you! So be careful! Do not submit all together, though link building is a matter for your dream-child I mean website!