This document contains full and short papers on World Wide Web-based learning from ICCE/ICCAI 2000 (International Conference on Computers in Education/International Conference on Computer-Assisted Instruction). Topics covered include: design and development of CAL (Computer Assisted Learning) systems; design and development of WBI (Web-Based Instruction) systems; application of the Internet to cooperative and traditional learning; a WBI system supporting individual learning styles; a multinational virtual learning community; Internet-based distributed learning; interactive learning systems; collaborative teaching for creative learning; networked constructive CAI (Computer Assisted Instruction) systems; the effectiveness of a Web-based collaborative learning system on mathematics; corporate trainers' experiences with Intranet-based training; building mathematics collaborative learning Web sites; building multi-tier component-oriented multimedia CAI systems; CALL (Computer Assisted Language Learning) in cooperative learning environments; intelligent tutoring systems; constructing an in-service training Web site for teachers; constructing a real-time CAD (Computer Assisted Design) learning system; teaching models in Web-based teacher training; measuring the effectiveness of Web-based learning materials; developing a Web concordance for ESL (English as a Second Language) learners; domain specific information clearinghouses; student learning styles, motivation, learning strategies, and achievement in Web-based learning; a second language online writing system; learner control in technology-mediated learning within a constructivist model; schema theory-based instructional design of asynchronous Web-based language courses; analysis of social discourse in a network-based learning community; the Internet-based educational resources of the U.S. government; and virtual reality. (MES)