This document compares and contrasts two video conferencing tools: Nefsis and Elluminate. Nefsis supports up to 500 concurrent users, allows screen sharing, has an interactive whiteboard, and integrated text, audio, and video chat. However, it is not compatible with Macs and does not allow simultaneous editing of PowerPoint files. Elluminate also offers screen sharing, whiteboarding, and chat features but has limited voice communication through a "push to talk" button. The document recommends Nefsis due to its more robust voice features and higher price point being justified for large groups.