Wired makes an interesting summary of what has been the history of Google and its algorithm, recommended reading. Not only is what has happened so far, but goes further into the future of a company that looks like a huge, well-oiled machine, with a fierce competitiveness hard to match by any other:
The Google algorithm is a work in constant evolution, with small tweaks and fixes to improve their performance. But since the birth of PageRank, the main elements being added are:
- September 1997 – The project is going to call Google
- August 2001 – New algorithm with more criteria than the links
- February 2003 – Local connectivity analysis, patent that gives more value to links from authoritative sites
- Summer 2003 – Fritz, to update the index consistently
- June 2005 – results customized
- December 2005 – Bigdaddy, better tracking
- May 2007 – Universal Search
- December, 2009 – Real-time search
For now we are with real-time search, and so it seems, despite attempts by Bing and even partnerships between the remains of the most used websites, Google will continue to lead the evolution of search engines for a long time.
My personal impression is that companies are not Google think they can just win the commercial battle with the advertising theme, with the image. But Google is very concerned over the issue of technology, where it invests, with a massive network of computing power that nobody else has and no one can match.
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