I originally wrote the following article a couple of years ago for publication at Website Magazine. It presents one way of thinking about the evolution of search and search engines, and I thought it might be a good idea to share it here as well. I’ve added a few very minor updates to the article.
Search engines have come a long way since their modest beginnings — although you may not have noticed. The major engines such as Google, Yahoo and Bing guard their search secrets closely, so one can never be absolutely certain how they are operating. But they are evolving, and personalization seems to be the wave of the future.
Search engines have already developed through two major stages and now may be on the verge of a third generation. The first stage was based simply on matching keywords in documents — where the same results were shown to all searchers, regardless of who they were or their original search intentions. The second stage, where we may be now, examines how searchers interact with the search engine to predict their intent. Finally, the third stage will attempt to consider the actual interests of searchers then recommend pages accordingly.
Stage One- Keyword Matching