ScienceStage.com has the stated aim of being "the universal online portal for science, advanced teaching, and research’. It allows scientists, lecturers, academics, students, and practitioners from all fields to present and share ideas and findings through video streaming, audio streaming, and text documents, and to make use of community functions such as chat, email, and blogs. Video and audio clips - lectures, interviews and documentaries - come from a wide variety of sources and are accessible for free streaming via a good subject index, although very prominent advertising is at times a distraction.