If you are in Berlin at the moment, you could still take part in the Web 2.0 Expo without having a full conference pass. Just check the conference page for the free Web2Open pass which gives you access to some keynotes and to the Open Event.
Web2Open consists of three major elements on Tuesday through Thursday:
- Open Grid Sessions: Delegates propose a topic for a talk they would like to give, and they show up and deliver the talk at their selected time. Open Sessions can be scheduled onsite.
- Pre-Scheduled Open Speaker Sessions: Topics pre-scheduled in advance and given by delegates.
- BoFs (Birds of a Feather sessions): Informal discussion groups on a particular topic, suggested and run by delegates. These differ from Open Sessions in that there is no formal presentation, only a discussion among those who show up. BoFs may be scheduled in advance or onsite.