This week Google announced additions to new algorithm changes they began implementing last month. While the search giant makes around 500 small adjustments and tweaks every year, since November 14 they have made several major improvements:
Throughout 2011, Google has made major revisions to week their search results of low quality content that duplicates much of the information already available on the web. As a result, many sites have completely revamped their approach. Demand Media deleted over 300,000 eHow articles and Yahoo retired more than 75,000 pieces of content from their Associated Content division. This change provides even better information to figure out which of two similar web pages is the original.
Have you ever entered a search and Google offered alternative “related” results. If a rare word was in the original query, sometimes Google would drop that word when calculating alternative results. This change makes it statistically less likely that the alternative searches will rank as high as the primary search phrase.
Long tail documents are now weighted heavier so they are more likely to move up in relevant searches.
New Classification for Parked Domains
Some marketers were making a tidy income from advertising on parked domains. The problem was that many had no valuable or useful content for web visitors. The new algorithm automatically detects parked domains and, for the most part, eliminates them from search results.
When you typing a phrase in the Google search box, it will start to autocomplete the phrase. This change strikes a better balance between your actual phrase and the alternative predictions the system was calculating.
This change creates fresher results for image searches to provide better data for news queries.
Top Result Selection
Previously it was possible for one domain to have several results crowding the top of search engine results pages. This change provides extra processing to help eliminate this blockage and make the top results cleaner and more useful. In addition, the code is now easier for the company to maintain and adjust for future changes.
Fresher Blog Search Results
Again, emphasis is being placed on fresher and more accurate results. This change to the blog search index brings newer and better blog posts to the top of the search results.
With the incredible popularity of tablets, this change makes minor color and layout changes to improve readability and usability on mobile devices.