A few weeks ago you saw the top 10 positive factors of Google's Search Engine. Well now I'm going to take things to a different side. I now have a list of the top 10 most controversial factors of Google's Search Engine.
Manual Authority/Weight Given to site by Google - Occasionally Google is accused of applying manual manipulation to a domain or page. This specifically refers to positive ranking manipulations but is not limited to it.
Relevance of Site's Primary Subject Matter to Query - The topic of relationships between the full content of a website and a user's given query.
Participation in Link Schemes or Activley Selling Links - helping sites with certain links gain rank or not allowing sites to gain rank until after they remove certain things.
Duplicat Title/Meta Tags on Many Pages - This severley limits the page ranking of your sites.
Global Link Popularity of Linking Site - How your site is linked to other popular or not popular sites.
Quality of the Document Content(as measured algorythmically) - Assuming search engines can use text, visual or other analysis methods to determine the validity and value of ontent , this metric would provide some level of rating.
Domain Extension of Linking Site(edu, gov, com, ca, co.uk, etc...) - Taken by itself it is meaningless but is, on the other hand, important when part of a larger whole.
Server is Often Inaccessible to Bots - Makes the crwling ability of the site very limited.
External Links to Low Quality/Spam Sites - Linking to a site that is dull or useless or just a spam site.
TLD Extension of Site(edu, gov, us, ca, com, etc...) - The top-level domain of the site. Some domains, however, like .edu, .gov, .mil or others have restrictions on who may purchase them.
And those are the top 10 most controversial factors of Google's Search Engine. To find out more information go to www.seomoz.org