What are your most useful synchronous online facilitation practices?

Beth's Blog: How Nonprofits Can Use Social Media

For the same reason, I love my cordless phone because I find I listen to long phone meetings better when I can walk around and move away from my computer. Queing up questions in a larger phone meeting via chat so that a) you know you are on deck to speak and b) people have a chance to be heard, especially if they are less inclined to jump in to a conversation. Fernanda showed me how she prepared a whiteboard screen with clipart of a circle of chairs.