Most centralized web search engines currently become harder to catch up with the growing step of people?s information need. Here, we present a fully distributed, collaborative peer-to-peer web search engine named Coopeer. The goal of the work is to complement centralized search engines to provide more humanized and personalized results by utilizing users? collaboration. Towards this goal, three main ideas are introduced: (a) PeerRank to use cooperation among users for evaluation, (b) query-based representation to obtain more humanized description about documents, and (c) semantic routing algorithm to obtain user-customized results.