Flickr, Youtube...what's next

Hi,

First of all, I'd like to say I enjoyed the conference. And after a
major jetlag (we came from the Netherlands) the following question
started spinning in my head. Engaging your visitors to your collections
/ museum / archive etc and seducing them to be prosumers is nowadays
done with flickr, youtube and secondlife. What do you think is the next
big thing?

Grtz

Floris Mevissen (WatWasWaar.nl)