1. What is authority sites? 2. What are their impacts on search results in google? 3. Have you any list of authority site? 4. How can I find authority site? Please give me answers in detail.
You will never find two people who agree on what exactly an 'authority' site is. It's not a formal fixed definition, it's a slang term for a top site in it's field.
Yes an authority website is one that is well established in its niche. Usually such a website has been around for a long time and has a lot of good search engine rankings. It usually has a lot of good content and a lot of quality backlinks. Links from authority websites can help your rankings a lot. To find such websites analyze some of the top ranking websites in your niche. You will notice that some are more established than others. I don't think it's so much a matter of whether a website is an authority or not. I think it is more a matter of how much of an authority are they for that niche. A link from a website with more authority will help more. Instead of using the term 'authority' Google seems to be shifting to TrustRank. This is basically giving every website a trust score based on things like quality of backlinks.
take a look www. training.seobook.com/hubfinder some useful info there and a great tool to find hubs or authority sites
1. What is authority sites? A site with huuuge value according to google 2. What are their impacts on search results in google? usually very good. authorithy backlinks are considerd the best one can get. 3. Have you any list of authority site? no 4. How can I find authority site? read articles on the topic what are authority sites, and search from what you learn from that.