So what governs the power of a text link from a friends, industry related or high ranking web site. I was recently reading a older article on Getfoundnow.com about ‘Link Juice’. It talked about the factors that they take into consideration when buying or finding a link to benefit their optimisation campaigns.

It talks about various variables that can easily be identified, The list below talks in more detail about the factors that Creare and others take into consideration.

Page Rank - If i site has aquired a high pank rank then it would suggest the content of the site if of a high quality and that google sees the site as a respected information source. I would personally not recommend that any links are worth buying  or sourcing if they have a PR of 0 (zero).

Outbound Links - If the site has a large quantity of outbound links then this may be easily identified by Google as selling links, this can cause the site to lose there page rank. I have seen this on tristarwebdesign.co.uk (PR7 - PR4) and seroundtable.com (PR7 - Pr4). Plus the ‘juice’ of the link is reduced.

Google Adwords or Sponsored Links -  Similar to the outbound links, if the webmaster has gone overboard with sponsored listing the quality of your link will be reduced.

Content -  Personally i think that it is vital that the content on the page reflects your industry or business in someway. This then shows Google that you have industry related websites that are willing to promote your website. Meaning that link juice is high.

These points are basic, but important. Just take some time to look at the web site you intent to buy or request links from to ensure that they will not hinder you current listings.

References:

http://www.getfoundnow.com/internetmarketing/link-juice-explained.html