I will share with you some tips which have helped me out, hopefully they will do the same for you:
1. Squidoo dot com is a great place to get links back to your site. Type the following into a Google search: “add+to+this+list”+site:squidoo.com
2. Many Web 2.0 sites that allow you to create profiles and interact with others provide high PageRank, “do follow” links to the website listed in your profile.
3. Article Marketing for Links. To get started, you simply have to write the article and submit it to a few article directories.
4.Relevant Lists and Resource Directories. The trick is to find these sites quickly and efficiently. We’ve found the following Google search queries to work very well: “Keyword phrase” + “add url”, “Keyword phrase” + “add site”, “Keyword phrase” + “add website”
5. This tool is helping tonnes of people out, take a look and see what it can do for you
http://j.mp/dxXK0r