I-Spy is a community-based Internet meta-search engine that provides you with search results that are informed by similar users. By joining an I-Spy community and using it to search the Web you not only benefit from high-quality meta-search results, but also from the result selections of users within that community. The idea behind this is that users with similar interests are likely to find the same results interesting for similar queries.
I-Spy implements collaborative ranking, borrowing ideas from collaborative filtering. It is a meta search in the sense that builds on top of an existing web search engine (in this case google).
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