This morning I stumbled onto The Collective Unconsciousness Project. It looks pretty cool. From the about page:

The Collective Unconsciousness Project (TCUP) is not designed to be a finished project, but an evolving framework that is both created and changed through interaction with it. It exists as both and online community and personal space. It's not as straight forward as an information driven website, but a nonlinear experience based on chance and the user's interactions. The purpose is to view connections between our dreams.

Users can contribute to the site by logging their dreams. This has a double effect, both helping to grow the database of dreams that the project can explore, and creating a personalized dream log for each user. The explore section of the site is the realization of TCUP. This is an environment that allows you to travel from dream to dream in a nonlinear yet interconnected way -- without being made fully aware of what those connections are, and without being in total control of the path you take.

Of course to use this I need to start remembering/recording my dreams.