Dear Colleagues, This is the 2nd announcement of the Probes11 Conference: "GRBs as probes: from the progenitor's environment to the high redshift Universe" that will be held in Como on May 16-20, 2011. The most relavent news are posted on the conference website: http://www.brera.inaf.it/Probes11/Welcome.html 1. We would like to announce that registration is now open, instructions for the early (cheaper) payment of the fee are available on the conference web site and also consider submitting an oral or poster presentation. 2. A pdf copy of the conference poster can be retrieved from the web site. We kindly ask you to circulate this announcement in your Institute and among Colleagues who may be interested in the event. We apologize if you receive this message more than once. Best Regards, Sergio Campana (on behalf of the Conference SOC)