For example : If today you ask Google about the 10 deepest lakes in the U.S, it will give you a very good result based on the keywords in the phrase and sites with significant authority on those words and even word groupings. However in the future you can expect Google to not only answer your lake question but also tell you that a lake is a body of water and tell you the depth, surface areas, temperatures and even salinities for each lake.

Over the next few months Google will be incorporating a technology called the semantic Web search (which refers to the process of understanding the actual meaning of words such as differentiating between the car brand Jaguar and the animal jaguar) to enhance the quality of its search results by actually trying to understand the meaning of the search query. With Semantic search Google will be able to match associate different words/queries with a database containing hundreds of millions of entities"people, places and things.

While it is known that a Google user will soon see more relevant results to his search query, it is still not clear what impact would these changes have on website rankings. Google has not yet given any new advice to webmasters, I suspect they will have to wait until the changes are rolled out.

My guess is that webmasters can expect a significant change in the way Google examines their site before ranking it in search results.