What's the importance of quantity versus quality?
The quality of backlinks is generally more important than the quantity of backlinks for diversified reasons. As previously mentioned, when search engines calculate the relevance of a site to a keyword, they consider the number of QUALITY backlinks to that site.
A search engine, such as Google, considers the content of the websites to determine the quality of a link. When backlinks to your site come from other sites, and those sites have content related to your site, these backlinks are considered more relevant to your site. If backlinks are found on sites with unrelated content, they are considered less relevant. If the quantity of backlinks is high, this can commonly mean that they are otherwise spam or irrelevant. However in saying that, a high quantity of quality backlinks is optimum for making a website credible and relevant. In order to achieve large quantities of quality backlinks is to entice visitors to come to your website.
When comparing the importance of quantity verses quality in backlinks, a website with 250 backlinks is only negligibly more important than one with 25 backlinks. The site with less quantity usually attains more quality. This is a result of SEO webmasters creating ‘spam’ backlinks in order to gain a higher quantity, and thus thinking that their website is more credible. Search engines, in particular Google, are mindful of this scheme, and are implanting strategies to hinder this process.
When retrieving backlinks, make sure they are from websites that are relevant to your page and high authority. If you are getting backlinks from a Chinese site that basically just consists of a large number of links, the search engines will not pay attention as much as if you are getting backlinks from blogs that cover information about your topics.
Consequently, instead of focusing on how to get as many backlinks as possible, you should make sure the links you get are quality.
Sources: http://kaizenwaymarketing.com/backlink-quality-vs-backlink-quantity/ http://support.google.com/webmasters/bin/answer.py?hl=en&answer=66356 http://www.webconfs.com/importance-of-backlinks-article-5.php