What are your most useful synchronous online facilitation practices?

Beth's Blog: How Nonprofits Can Use Social Media

It worked for me because of the clock technique we often use to facilitate conference calls. So, I read it with this question in mind: What techniques can be applied or adapted to Second Life facilitation or virtual world interface facilitation? " Given that it is a virtual word, do online facilitation techniques used in RL or other types of online applications make sense? I posted a question on the educator listserv and there doesn't seem to be one.