The call for papers for VizSec 2011 is open. VizSec2011 will be held on the campus of Carnegie Mellon University, on 20 July. Full paper submissions are due 1 April and panel abstract submissions are due 15 April. This is the conference to attend if you're interested in graphical depiction and analysis of security data! I was pleased to provide the keynote last year, but I will not be able to attend this year.