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I have heard about back links but am not sure what they are or how they affect search rankings and search engine optimization.

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A back link is a any link on another website that is not your own that points to a page on your website. This is different from an internal links which is when you link one page on your website to another page on your website. They are helpful in SEO because the search engines, particularly Google, sees links as "votes". Whenever another website links to yours they are essentially "voting" for your web page, or a better way to say it is they saying they believe your web page is very helpful or informative on the topic it covers.

Backlinks carry weight because they are generally out of control of the receiving website. (As a general rule, the less control a webmaster has over something and the more visible it is to users the more weight it will carry). Yes, you can attempt to make websites just to link back to your own website but there are many problems with this. Not only can you not make enough links to make a difference regardless of any other factors, but the search engines can sniff out networks built for such a purpose and devalue those links completely and/or ban those sites from their search engines.

Additionally, not all links are created equal. Links from related web pages are worth more then from unrelated pages. The anchor text in those links are also a factor in the link's value as is the page's ranking for the search terms you wish to rank well for. In Google PageRank is also a factor (although much smaller then many would have you believe). So, going back to my artificial network example, even if you make a network of sites just to link to yours, because they won't have any backlinks of their own and will rank poorly their links to you will be very low value and not helpful at all. Especially if they are off topic. If you try to make sites similar to your own you have two problems: either the sites contain duplicate content and will be ignored by the search engines or you'll be wasting good content on a satellite website when it could be doing your main website good by attracting links where you want them in the first place.

The best way to get backlinks, especially quality backlinks, is to have high quality content on your website. These naturally attract links as webmasters prefer to link to good content and not frivolous content. Building up quality backlinks takes time and never goes quickly. Anyone telling you otherwise is not well informed or being dishonest.

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is cyclic backlink bad? i mean xyz.com pointing abc.com and again abc.com pointing xyz.com –  KoolKabin Oct 27 '10 at 14:56
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That's called a reciprocal link. They may carry less weight because they are solicited and not one way. Those aren't harmful unless the other site is known to be part of a black hat network in which case you risk being associated with it. Just be careful who you trade links with. –  John Conde Oct 27 '10 at 14:58
    
+1 Good answer! –  mickburkejnr Feb 21 '11 at 11:45
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Backlink is link that you received from other websites. And back links are important to for PR. This tools searches for websites of the theme you specify that contain keyphrases like "Add link", "Add site", "Add URL", "Add URL", "Submit URL", "Add Article" etc. Most of the results could be quality potential backlinks.

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You want backlinks from relevant content on other domains to point back to your content on your domain! Lets say you wrote an article about "hi fidelity sound systems" on your main website, you could then create another article on your blog or another website that is similar or some how related to the first article, and create a link back to the original, effectively driving up your page rank. The relevant the content is the better.

Google tends to use backlinks like not just as a part of its ranking of your site, but they also serve as a verification system. If reputable sites point back to yours, then this helps to validate that you are reputable yourself. Your backlinks need to come from reputable sites and have relevant content. The article explains this in a little more detail though.

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Backlink is the service which had been designed for the purpose of creating linking with website or many other WebPages. This had been providing people with an ease factor and on the other hand it had been found out that the link can only be created when the incoming link from a particular website or web page had been received. However these are the services which are mainly used by the search engine service. Even back links are the best features of finding something on the search engine and then the related website is being linked to that particular topic. Backlink had been providing this type of service effectively to the people.

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