Friday 20 April 2007

History of Google Book Search

In the beginning, there was Google Book Search.

Well, not exactly. But one can certainly argue that the project is as old as Google itself. In 1996, Google co-founders Sergey Brin and Larry Page were graduate computer science students working on a research project supported by the Stanford Digital Library Technologies Project. Their goal was to make digital libraries work, and their big idea was as follows: in a future world in which vast collections of books are digitized, people would use a "web crawler" to index the books' content and analyze the connections between them, determining any given book's relevance and usefulness by tracking the number and quality of citations from other books.

The crawler they wound up building was called BackRub, and it was this modern twist on traditional citation analysis that inspired Google's algorithms – the core search technology that makes Google, well, Google.

Even then, Larry and Sergey envisioned people everywhere being able to search through all of the world's books to find the ones they're looking for. What they couldn't have imagined was that one day they would launch a project to help make it happen. Herewith, a brief tour through some of the major milestones so far:

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