What are the sysadmin-related conferences and events worth attending? > **Possible Duplicate:** > Conferences to go to 2011 Edition I would like to know your opinion on this subject and build a list of sysadmin-related conferences and events worth attending world wide. Which ones have you attended? Do you recommend them? Which ones would you like to attend? Why? Help building this list.

List of sysadmin/scaling/infrastructure specific conferences seems like a pretty thorough listing (albeit with old links). I'd add Velocity to that list, as well.