The toolbar also provides instant access to web search as well as customization options by adding your favorite websites from the button gallery. SHOUTcast provides free-of-charge audio broadcasting software for those who want to create a radio station. Anyone on the internet can broadcast audio from their computer to listeners across the Internet or any other IP-based network (Office LANs, college campuses, etc.). SHOUTcast's underlying technology for audio delivery is MPEG Layer 3, also known as MP3 technology. The SHOUTcast system can deliver audio in a live situation, or can deliver audio on-demand for archived broadcasts if made available by the broadcaster.