Backlinks helps to get more visitors to your page. The best way to get back link is write your post with high quality. If the visitor feels it was awesome, then they may add link of your post to their websites or blogs as backlinks. Attraction to your blog may depend on the heading of your post, contents and relevance. If your content is unique the possibility of getting back links is more. You can add back links for your post in Wikipedia for free. When ever you add the links of your post to WikiPedia, ensure that the topic covered in Wikipedia will have direct relation with your post. For example, if you are writing a movie review on your site, you can give link of your websites to Wikipedia by adding your comment about the movie on the article in Wikipedia about the particular movie. This is applicable for other types of article too. You can ask for bloggers who are dealing similar post of yours to give link to your pages on their sites and offer them, you will add their link on your site too by acquiring mutual benefits of backlinks.