The Information Filtering under the Web 2.0 Environment

This paper analyzes the information characteristic under the Web2.0 environment from several aspects such as information creation, information activity, information communication and information users. Thus, we put forward that the information filtering is worth paying attention topic under the Web2.0 environment, introduce concept of the information filtering and classification, and discuss the detailed information filtering technology of Web2.0 from three aspects such as RSS, Tag, TrackBack. Finally, this paper expounds information filtering way under the Web2.0 environment from several aspects such as Blog, Wiki and Blog search engine.