| Great article. One note: Google's dynamic abstracts were not only very useful, they also improved perceived relevance because they let users see why the pages were selected. When I was at Altavista, we were also blocked from doing dynamic abstracts by cost. Google's main advantages were: - managed by the founders with a total focus on search and measurable results - google's hiring process produced a very strong team early on - strong focus on controlling costs from the beginning (Altavista's use of the DEC Alpha was a huge handicap. |
At google these three groups worked hand in hand and complemented each other's work. The eggheads came up with page rank, the coders figured out how to make pagerank scale through massive paralellism via sharding and mapreduce, and the data center folks figured out how to make sharding cheap and fast through commodity pc based servers and massive amounts of automation for management. In the end everyone was working at the top of their game to help everyone else. The result was that google was able to deliver better results (pagerank) faster (mapreduce) and cheaper (automated commodity hardware datacenters) than the competition.
There were lots of other fine details that led to google's success, but in the end those core factors are what allowed them to deliver a better search experience to users (better/faster) and to be more competitive in the marketplace (lower cost per search means more profit even with lower per search ad revenue).
No one else in search was pushing on all the right pressure points the way google was, and the rest is history.