Hi, Link development for more important to your website rank and all the depends on your website development to a good link-building mean strong and permanent link build so if you are properly directory submission, press releases submitting, comment posting, bookmarking, emailing and etc technique used then you are success to build our link permanent and more important firstly target our keyword which is used in link building so when you link development then above methods used which boost your link in search engine and your website give rank on search engine.......
Its not just building links, you need to concentrate on the quality of your content too. Working just for links may lead to ban if found by search engines