- The Jagger Update and the Big Daddy infrastructure that it prepared the way for was a major watershed. When this happened near the end of 2005, ever-flux began to show in the SERPs. Rather than once a month ranking updates, the ranking shuffle became continual.
Source Monthly Google History: http://www.webmasterworld.com/google/3801699.htm - Google’s war on paid links that began as far back as 2005 raised quite a ruckus. At first Google’s negative actions were taken manually and then algorithmically. Algorithmic false positives began to confuse things even more, and I wish they would have just stopped with showing false Page-rank on the toolbar.
- Phrase-based indexing, as described in the 2006 patents, brought a deeper level of semantic intelligence to the search results. This power continues to grow today. One big effect - it makes over-emphasis on keywords, especially in anchor text, a problem when it used to be an asset. But there was a major advantage for the content writer who could now throw off the rigidity to major degree and vary their vocabulary in a more natural way.
source: http://www.webmasterworld.com/google/3247207.htm - Geo-located results began to create different rankings even for various areas of the same US and UK city somewhere around 2005 or so. Anyone who was still chasing raw rankings as their only metric should have quickly learned that the time for a change was long overdue.
- Google’s user "intention engine" has had a major impact, and that rolled out in a big way in 2009. This was coupled with a kind of automated taxonomy of query terms. Now, sometimes a certain kind of site will just never rank for a certain keyword, no matter what they try. The site’s taxonomy has to line up with the taxonomy of the query term.
source: http://www.webmasterworld.com/google/3980481.htm
Monday, February 1, 2010
Google Algorithm History Summary 2010
Google Algorithm History:
