re: publica is a conference in Europe that deals with Web 2.0 , especially blogs , social media and information society . It takes place annually in Berlin . During three days talks and workshops will be held on various topics, ranging from media and culture for the amusement of the politics and technology. All talks and discussions directly streamed to the Internet.
The conference was organized by the operators of the German blog Spreeblick and netzpolitik.org  and is funded by Medicare Board Berlin-Brandenburg and Bundeszentrale für Politische Bildung . Re: publica stems from res publica which translates to “public trial”.
The first re: publica with the slogan “Leben im Netz” – Life in the Internet – took place 11-13 April, 2007, attracted about 700 visitors. Over the years grew the case constantly, with 5,000 international visitors and 350 speakers in 2013.  Each year, different head lay focus, to protect sample data in 2008, intellectual property rights and political aspects of using the Internet in 2009.
In 2011, Daniel Domscheit-Berg , the project OpenLeaks as a planned politically neutral alternative to WikiLeaks durcing the conference.  
A highlight in 2012 was a meeting with the European Commissioner for Digital Agenda Neelie Kroes demanded to stop ACTA and SOPA . 
The eighth Re: publica entitled in nature, in May 2014  The conference 350 sessions on 18 stages, 500 volunteers and 6,000 people overall, breaking his attendance record. 
The ninth Re: publica place from 5 May 2015 to May 7, 2015 attended by more than 7,000 people  and 450 speakers ,  was the largest Re: publica ever.