1. Run a dress rehearsal - Avoid scheduling a meeting before you have had time to run through a "rehearsal" . Go through each slide you are going to be presenting and each program to make sure that the flow of the meeting will go as expected.
2. For large meetings use chat - Voice conferencing with over eight people can be really unproductive. For large meeting use the chat feature.
3. Use prerecorded videos - If you present something to many people that that you have to repeat often, prerecord the section so that you maintain consistency.