I will talk more about this topic later, but I see the UnConvention (see BarCamp) method of aggregating ideas and thoughts, in addition to efficiently parsing and developing theories to be a very exciting development for our society. I attended the MindCamp 5.0 UnConvention this weekend and was amazed at the depth and thoughtfulness of content that people were sharing.
The format and content is mostly dictated by the type of attendees, and it is feasable to create an unconvention for basically any intellectual community that exists on this planet. The open nature of the conference allows anyone with an interesting idea to develop it with the community, and the more active the conversation, the more beneficial it is for all parties involved.
I always look for activities to do that will do a good job of stretching my brain about new concepts and ideas, and I think this is probably the most interesting angle I have found to accomplish that goal.