I have used Cocoon to develop several websites already, and currently I'm adding some more features to them, and porting some older JSP sites to Cocoon.
I work for Merlin Information Systems, in the UK.
The sites comprise of a knowledge base and a means to contact a customer services representative (email, online chat, telephone...) and they are quite customizable for each user.
One of our sites supports 5 European languages, another supports two but is due to have some double byte languages added before too long (like Japanese).
Outside of work I've just started coding a shopping site for my brother. It uses the PortalEngine, and the persistence layer is managed by Hibernate.
I've attended the 2003 and 2004 GetTogether so far, looking forward to the next one...