In this paper, we propose a novel system working on the Web for personal media sharing and authoring. Three primary technologies enable this end-to-end system, including scalable video coding, intelligent multimedia content analysis, and template-based media authoring. Scalable video codec tackles the issue of huge data transmission, multimedia content analysis facilitates automatic video editing, and template-based media authoring scheme further reduces the workload of media sharing and authoring. Experiment and a demo system on a real Internet environment show that this novel system is effective. Categories and Subject Descriptors H.5.1 [Information Interfaces and Presentation]: Multimedia Information Systems - video; I.2.10 [Artificial Intelligence]: Vision and Scene Understanding - video analysis. General Terms Algorithms, Experimentation. Keywords Video editing, multimedia content analysis, multimedia sharing, multimedia management, template-based video authoring.