For Wednesday the 31st I'll have you read and do a couple of things to get ready for class.
First go through the PowerPoint on asynchronous discussion.
Next you want to find an online message board or forum and poke around an read. Observe the explicit and implicit rules for communicating on this board. Make note of the tone of communication and come prepared to discuss and work out recommendations for successfully communicating in this type of arena.
Check out this Google directory of online message boards or the big-boards site has a number of links you can use. If you already know of a message board or use one, you can use that for preparation.
No questions to post for Wednesday.