Backlinks are an important aspect to higher search engine rankings. There are many ways to get backlinks to your site, and I will detail a few of them in this article.

Organic Backlinks 

Organic backlinks are backlinks that you do not necessarily 'do' anything to get. What I mean by organic is that they come naturally. By providing a great article or resource to those on the internet, people will eventually backlink to you on their own.

It does take time and effort to get organic backlinks though. Instead of doing a mediocre article which can be done quicker, by taking a little more time and doing the extra effort to provide a great article, it will stand out, and so more people will gravitate to that article as opposed to the hundreds of mediocre articles on the same subject.

Email requests to webmasters

I know you have read about this a large number of times but stull there is something missing. You can not get a back-link or a link exchange from quality and related sites by simply shooting an email to the webmaster. Do it my way to gain success. First put a link to the site you want to exchange links with on a page of your site, the page should have some content on it and must have some traffic. The page you are putting a link on must also be easily accesssable by search engine bots. After you have done this, wait for a few days and let the webmaster realize he is getting traffic from your site. Once he sees traffic coming to his site from a page, he will visit the page and analyze it. After a few days write to him that you want to exchange links with him and you will be happy to keep his link on your site if he is willing to link back to your site. Try this and get quality back-links from related sites.

Establish other related sites and blogs

Apart from giving me some good back-links it also increases the number of sites I own and sooner or later every site start fetching some traffic which means it pays helps me make more money.
I thought the title of this was self explainatory, in case it was not let me explain. Make some sites or blogs with related keywords to your site and get back-links to your site from them. No need to make huge sites. Sites or blogs with 20 to 30 pages will be enough and once it start paying you back through ad revenues or something , you might want to increasy the number of pages to earn more.

Link directories

This is the easiest way to get some free backlinks. All you have to do is find some quality free directories, choose a related category for your site and submit your site to that proper related category. As choosing a proper category will increase chances of your link being accepted, it will also insure you get back-link from related keywords which is one of the best SEO practices.

• While submitting your sites to link directories, don't forget to write a proper description of your site with some of your keywords in it.

• Don't leave the keywords field empty as it is not mandatory.

• Keep on changing the text in title tag while submitting to directories so that Google don't take your site for spam.

Social Bookmarking

Social bookmarks are the sites that allow you to share sites you like with others or in other words you can maintain your bookmarks and favorites in a way that others can see it. There is a large number of social bookmarking sites on the web. Visit them and get free and easy back-link to your sites from them.

Caution: Don't keep on submitting your own site(s) to them. This will look spammy and some of the social bookmarks might ban you for doing this. Submit other good sites, blogs and pages too.

Tip: Write a good description and a catchy title to get large amount of traffic as well as large number of backlink from them. This way more people will rate your site and you wil get a link-back from their profiles too.

Social Networking

If the search engine bots can crawl a social network, then the back-link is useful otherwise its of no use. Example Search engines can't crawl Orkut so a back-link from Orkut is pretty worthless, in contrast to that search engine bots can access FaceBook pages and thus a backlink from FaceBook might help improve your search engine ranking.

Comments

Commenting gives you a free backlink but don't take it for granted. Try to comment something related to the topic and your comment must add value to the topic. The owner of the article should not think that you haven't even read the article and you are commenting just to get a back-link. Please don't add comments like, "nice info", "great article" etc and get yourself blocked. In order to get more benefits from comments, try to find blogs or articles having same keywords as your site and then comment on them.

Articles

All you have to do is submit some articles on article directories. Have links to your site in the text of the article as well as the resource box. When someone will copy your article to his/her blog, you will get backlinks. Your articles should be unique and well written if you want to get some quality backlinks through your articles.

I understand that much of this information about getting backlinks is standard now on the web. My advice is to put your time into a combination of writing great articles in order to get organic backlinks, while at the same time setting up sister sites to interlink with each other. On that point, please continue here for more information about online marketing. :)