Trailer Preview ideas

I am not entirely sure what I'm going to do for this trailer. I have a great deal of brainstorming left to do, luckily I have all weekend to figure it out. I will probably try to use a combination of videos and pictures to outline how an entire community of whitewater enthusiasts have established themselves on the internet through the use of blogs, forums, videos, pictures, and other informational websites. This might be a bit tricky.