SEO, or search engine optimisation, is the most important element in  building a successful website. Most people online have heard the term SEO and  have some idea of what is involved yet it remains a puzzling process. One of  the reasons SEO is so mysterious is that it can be a complex endeavour and  search engines are constantly changing the way they rank sites and the way the  recognise the many tools of SEO.
                      
                      At the forefront of the SEO check and balance system is the leading  search engine Google. They have pretty much set the standard for technology in  search engine algorithms that can track the relevancy of a website to its  content and SEO efforts. Their ranking system remains one of the most popular  methods of determining a web site's quality because of their meticulous efforts  in eliminating the bad apples that have little to offer a consumer other than  skilled manipulation and the ability to 'play the system' to their advantage.
                      
                      Of course taking advantage of the system makes perfect sense from a  business standpoint but from the search engine outlook of wanting to provide  the best quality sites on their results for the viewer, it can become difficult  to distinguish the site that is good quality wise from the site that is good  because it has a very manipulative operator at the helm.
                      
                      Because the rules for SEO progress and change rapidly the mystique of  search engine optimisation continues to confuse website owners. Many people  build their websites thinking the only SEO tool they need is key word density.  While key words are an important aspect in SEO they are not the only means to  an end, they are simply a part of the puzzle. There is another tried and true  method of SEO that is as relevant today as it was at the start of the concept  of web marketing and that is back linking. While back linking remains one of  the most successful ways to get your site to rank high on the search engines it  also has undergone some changes making the types of links important so that  search engines do not penalise a site for bad incoming links.
                      
                      The term "back link" refers to an outside link on another  site that points to yours. In the past any link from another site would have a  positive impact on your site by the search engines. Because there were so many  gimmicks developed in the last few years to collect massive back links to  websites such as link farms and irrelevant reciprocal linking, Google began to  develop a way to reject links that were purchased or had minimal meaning or  relevancy.
                      
                      Even though back linking is used to manipulate search engine  popularity, there are many very legitimate reasons for using the system of back  linking. Finding web sites that have a common interest to your own who are  willing to place your link on their site can get you extra exposure. When their  visitors come to their site they will see your link and likely visit your site  as well.
                      
                      The fact that onsite links like that have such a perceived relevance to  the visitor makes them a valuable marketing tool, but that perception of  quality is also why Google works so hard to be sure they are real quality  links. You will get higher ranking on a search engine for a number of genuinely  relevant back linking partnerships, however, if the sites linking to you do not  share any common information or products, Google will penalise you for the  link. There are new programmes being developed by Google where your site could  even be devalued if the site that links to you is determined to be bad quality,  so it is important than ever who you carefully choose to link to, and also who  links to you.
                      
                      In the past many website owners would open up multiple websites with the sole  purpose of promoting one principle site. They would use the extra websites as a  means of placing back links to the main site. Google now watches for sites that  are created with the same IP address. Creating a large number of websites on  the same IP address and putting back links on them to quickly develop a number  of links is known as link bombing. That is not to say that you cannot ever link  to your own website from a site you own. If there is a reason to show your  visitors some additional information a few well placed back links are fine. It  is when there are many links from each site all pointing to a single 'main'  site that the search engines look at them with suspicion.
                      
                      The system Google is working hard to put in place to discount a link  from a bad site is why it is very important to know who is linking to you and  if their site stacks up to your standards. It is no longer true that all  inbound links to your site are good links. There are very good tools available  online for free that can show you who is linking to you. If you find a site  that is linking to you that you feel is questionable in terms of how they  relate to your website either in information or product you should contact the  webmaster of the site and demand that they remove the link to your website to  avoid being penalised by the search engines.   Here is a fantastic site where you can check the back links to your  website - http://seopro.com.au/free-seo-tools/link-checker/. 
                      
                      Probably the best way to obtain a back link to your site is  through anchor text. That is when you have another website with content that is  relevant to your own (relevancy is ALWAYS important) including your site in the  actual content of their site with a hyperlink inside the text. These back links  are valued much higher than a simple sidebar link as long as they appear in the  text in a way that has a fluid and meaningful association with the content of  the article. There are several ways to get such back links.
                      
                      Providing articles to content sites with your link built into the  article is one method. If you write very compelling information on your website  is another as someone else with a similar site may wish to point it out on  their own. You may not even realise they are doing it unless they tell you  about it. This is one of the main reasons it is important to keep an eye on who  is back linking to you. While the majority of those types of links are  wonderful and you should thank the site owner for their inclusion, if you feel  the site that is linking to you does not meet your standards, have similar  information or the content is not relevant to your site, you should certainly  ask them to remove your link.
                      
                      Back linking is an extremely important aspect of SEO development  and it is something you need to understand well in order to implement and  control it properly. Keeping your website in good standing with the search  engines and popular with your visitors is the best way to ensure a vital and  profitable future for your business online.