Voice Thread is a free online tool that allows for collaborative group conversations through sharing of videos, images, and documents. Users can comment on shared content in five ways including microphone, webcam, text, phone, or uploading audio files. The activity feed captures images from mobile devices and notifications are sent for comments and shares while content can be shared through social media or email. Voice Thread has educational uses such as publishing student work for peer feedback, demonstrating mastery of topics through alternative assessments, storytelling, and creating historical document collages.