I Web Technology Web 2.0 Meme Map Flickr delic o US: PageRank, Blogs: Participation. Tagging. eBay roputason Not publishing BitTorrent: Rad cal Decentralization not taxonomy Amazon reviews. user as contributor Gmail, coogle Google Adsense: Maps and AlAX customer selfservce Wikipedia Rich User Experiences enabling the long tal Radical Trust Strategic Positioning: The Wobas Platform User PositionIng A abide, not You control your own dsta Trust your users a technology Core Competences: Services, not packaged software Architecture of Participation Cost-effective scalability Small P eces The Long Tall Remixable data source and data transformations Loosely Joined Software above the level of a sIngle devce web as components Harnessing collective intelligence Data as the 'Intel Inside Software that gets Rich User Experience The perpetual beta better we more peaple use Granular Addressability The Right to Remix Emergent: User of content Hackability Some rights reserved behavor not predeterminedWeb Technology Fudan course, by Dai kaiyu Web2.0  Web 2.0的核心模式 - 群众智慧 - 数据是核心竞争力 - “组合式”创新 - 丰富用户体验 - 支持多种设备 - 软件即服务（Software as a Services，SaaS） - 利用长尾 - 轻量级模型和低成本优势的可扩充能力