from http://www.barcamp.org/index.cgi?BarCampAmsterdam

Immediately following EuroOSCON, sometime around Oct 20-22. You can also track this event using the Upcoming.org entry: http://upcoming.org/event/32391

And by following, we mean starting Oct. 20th at 16:00, right after Cory Doctorow's presentation, and going through Saturday. We hope that this will encourage more people to attend EuroOSCON, and that many attendees can stay for the hands-on hacking and community events at Barcamp Amsterdam

Good to keep up with the developments.