Many of the internet marketing professionals know what it takes to build backlinks. But there are still people popping up with many doubts and who want to know how to build back-links. So I hope this post will help such novice and people who just started their career in web site promotion.

1. Directory submission

2. Articles submission

3. Press releases

4. Forum postings (make sure you do not spam :D)

5. Forum signatures

6. Blog post - Although many of the blogs have no follow :( (benefits you in getting traffic)

7. Content exchange (RSS feeds) - well there are sites which grabs content from other sites using rss feeds, so having links in your content will benefit you and more over you need to submit your site to such rss feed directories.

Apart from all the above there is another way and that is Link exchange.
As you always should remember greedy will make your site miserable in many aspects :D
Always remember to calculate the ratio between inbound links and outbound links. You should never have more outbound links as this is bad for your website. Although there are many versions on Link exchange programs. All you have to remember is never link to a links farm which ruins your SEM/SEO efforts.

Make sure you always link to good websites that are relevant to your website topic. Links from link farms may not put your website down because you do not have control over back guys who link to you. But always make sure that you do not provide links to such link farms, spam websites or such bad neighbor websites.