BigBlueButton

BigBlueButton is an open-source web conferencing software that aims to assist educators and organizations in online learning via web-conferencing. It offers a wide range of features including two-way audio and video, whiteboard for live annotations, public and private chat, screen sharing, polling, desktop sharing, voice conferencing and WebRTC (Web Real-Time Communication). BigBlueButton facilitates easy document sharing during collaboration by allowing users to upload PDFs or Microsoft Office documents which can be annotated on the go. The software allows customization as per the user's requirements using its full source API integration with IMS Learning Tools.

BigBlueButton integrates with Learning Management Systems such as Instructure, Schoology, Jenzabar, or D2L making it easier for instructors to manage their e-learning courses from one place. Educators who choose BigBlueButton do not need to incur any capital expenditure since it is an open-source software. Users can record lectures or webinars for later playback ensuring better understanding among learners.

Overall, BigBlueButton is a feature-rich solution that has been designed specifically for e-learning needs. As an open-source product its flexibility makes it perfect for developers who would like to customize its functionality even further through API integrations. With this product connected classrooms have become more seamless than ever before!