Some events we contributed to organize:

• IS-EUD 2011, The Third International Symposium on End-User Development, Hotel del Levante, Torre Canne (Brindisi), Italy , June 8-10 2011.
  Maria F. Costabile is General Co-Chair, Antonio Piccinno is Program Co-Chair, Paolo Buono and Rosa Lanzilotti are Publicity Co-Chairs and Carmelo Ardito is Local arrangement Chair.
• CHI 2008 - art.science.balance, The 26th CHI Conference, Florence, Italy, April 5-10, 2008.
  Maria F. Costabile is Paper Co-Chair.
• INTERACT 2005, Tenth IFIP TC13 International Conference on Human-Computer Interaction, Rome, Italy, September 12-16, 2005.
  Maria F. Costabile has been Program Co-Chair and Paolo Buono has been Organizational-Overview Co-Chair
• HCItaly 2005, Il quarto Simposio italiano su Human-Computer Interaction Human-Computer Interaction, Rome, Italy, 14 September 2005
• AVI 2004, International Working Conference on Advanced Visual Interfaces, Gallipoli (Lecce), Italy, 25-28 May 2004
  Maria F. Costabile has been General Chair and Paolo Buono, Rosa Lanzilotti and Antonio Piccinno have been in the scientific secretariat
• Workshop on Visual Computing, San Francisco, USA, 26-27 September 2002
• VLDB 2001, Roma, Italy, 11-14 September 2001