For your information: a new community has been launched (in beta) about the impact of web 2.0 (or social computing) on public services.
It is hosted in the EU epractice portal. It aims at exchanging experiences, knowledge and opinions on the topic, and it will benefit from early releases of content from studies by IPTS (the institute I am currently working in), such as cases studies and foresight analysis.

I am currently moderating it and posting more institutional content, while this remains my personal blog.
I would be very happy if people reading this blog would join the community.
You need to register to ePractice first, it’s a very useful information site on EU eGov related issues. I know the platform is not perfect, but let’s see if we can make it work.