When we introduced the day passes, part of the discussion revolved around the observation that some number of people (I don't think this has ever been "measured") attend for a day or less than a day in order to participate in a specific working group session or even just meet with other people. This has certainly been the case for as long as I have been attending, Berlin will be my 80th (!) IETF meeting. Prior to the day pass program (and since we generally don't check badges), there was no "honest" way to attend for just a single day. Having Day Passes at least let's people attend for a day without feeling guilty (whether they consume cookies or not). Ole Ole J. Jacobsen Editor and Publisher, The Internet Protocol Journal Cisco Systems Tel: +1 408-527-8972 Mobile: +1 415-370-4628 E-mail: ole@xxxxxxxxx URL: http://www.cisco.com/ipj Skype: organdemo