Gnutella / Freenet / Pure P2P model

• Decentralized resources (desktop PCs)

• No central index

• Start with nodes that know about peer servers

• Peers find neighbors

• Ask for resources (generally only file names, maybe MP3 ID3 metadata)

• Significant scaling problems

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Peer, Meta and Distributed Search
Infonortics Search Engines Meeting, 2002
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