From April 2-4 more than 800 bloggers, netizens, and media creators will gather in Berlin for the 2nd edition of the Re:publica conference. The 2008-theme will be "the critical mass". In over 100 talks, panels and workshops the conference will address the social and cultural impact of blogs, wikis, and social networks and discuss social media that rely on the interaction between people. The conference will be held mostly in German. If you are in Berlin these you can register here.