WhereCamp 2009, an “unconference” taking place May 22 to 23 in Palo Alto, California, right after Where 2.0 in nearby San Jose:

We are self-organized in true bar-camp style. Bring your projects, work and ideas to get feedback from a group of the worlds most passionate social cartographers. Topics are whatever you want them to be. Over the last two years we’ve seen presentations ranging from emergency crisis response … to psycho-geography to visualization, to mobile mapping to re-factoring urban landscapes.

The expectation is simply that you participate. It’s your event and we’ll all get out of it what you put into it. As usual the event is zero dollars to enter — we will be seeking sponsorship to make yummy food and other consumables appear.

See also the Cloudmade blog. Via YahooGeo.