This is just a suggestion, but what about a status updater similar to that of twitter.
These are very common on other social networking sites.
this would allow people to announce in short what progress they have made that day and everyone could see it.
shanemyko is: trying to get a contract for an auction.
shanmyko: just made his first deal
I think you get the point.
then people can reply directly to these little updates. Is something like this possible here?
There are a million reasons why you CAN'T do something. You need to find the one reason you CAN, and run with that!