Mark up websites, graphics, and photos, or start brainstorming on a blank canvas. Browse the web with your friends or make that conference call more productive than ever. No plug-ins, downloads, or firewall voodoo - it's all here, ready to go when you are. Browser-agnostic, user-friendly.
O. Yavoruk. 2021 2nd International Conference on Education Development and Studies, page 1–5. New York, NY, USA, Association for Computing Machinery, (2021)