I visited California (& Nevada) for training and conferences with Sun, the first part was at Seascape, Monteray and was the bi-annual Distinguished Engineers conference, we ended up in Las Vegas for the Customer Engineering Conference. I led a team that built and ran a messaging service for managing questions to the presenters. I did a bit of blogging which can be picked up at my sun/oracle blog. It would seem that the technical stuff about how we built and ran the messaging system was hosted on an internal site and so is unavailable; the blog on question quality remains quite interesting.
These articles were originally posted on my sun/oracle blog, this pointer was published in June 2016, and back dated to the point of occurrence.