Synchronous learning tools allow for real-time communication and collaboration. Chatrooms allow students to communicate in real-time and can be used to include guest speakers or debate issues. Avatars represent users and can be used for role playing, giving tours, and as teaching assistants. Voki allows users to create speaking avatars to practice language skills. Second Life is a virtual world where users interact through avatars for role playing, simulations, and collaborative learning. Wimba, Google, Skype, and Adobe offer video/audio conferencing, screensharing, and webinars to facilitate online discussions, learning, and professional development across different locations. Moodle integrates online tools for assignments, discussions, grading, messaging, calendars